RS 165
Digital Wireless Headphone System
Instruction Manual
RS 165 | 1
Contents
Important safety information ...................................................................... 3
The RS 165 digital wireless headphone system ........................................ 6
Package includes ............................................................................................ 7
Product overview ........................................................................................... 8
Overview of the HDR 165 headphones ..................................................... 8
Overview of the TR 165 transmitter .......................................................... 9
Overview of the indicators ......................................................................... 10
Putting the RS 165 into operation ............................................................
Setting up the transmitter ........................................................................
Connecting the transmitter to an audio source ....................................
Connecting the transmitter to an AC wall outlet ..................................
Replacing and inserting the rechargeable batteries ............................
Charging the rechargeable batteries .......................................................
Adjusting the headband ............................................................................
Using the RS 165 headphone system .....................................................
Switching your wireless headphone system on ....................................
Adjusting the volume .................................................................................
Muting/unmuting the headphones .........................................................
Activating/deactivating the dynamic bass boost ................................
Pairing headphones to the transmitter ..................................................
Switching your wireless headphones off ................................................
13
13
14
17
18
19
20
21
21
22
22
23
24
25
Cleaning and maintaining the RS 165 ...................................................... 26
Replacing the ear pads ............................................................................... 26
Troubleshooting ...........................................................................................
Sound problems ...........................................................................................
Other problems ............................................................................................
Leaving the range of the transmitter ......................................................
Clearing the pair settings on the headphones .......................................
27
27
28
29
29
Specifications ................................................................................................ 30
Manufacturer declarations ......................................................................... 31
2 | RS 165
Important safety information
Important safety information
왘 Read this instruction manual carefully and completely before using the
product.
왘 Always include this safety guide when passing the product on to third
parties.
왘 Do not use an obviously defective product.
Preventing damage to health and accidents
왘 Protect your hearing from high volume levels. Permanent
hearing damage may occur when headphones are used at
high volume levels for long periods of time. Sennheiser headphones sound exceptionally good at low and medium volume levels.
왘 Do not use the product in situations which require special attention
(e.g. in traffic or when performing skilled jobs).
왘 Keep the headphones at least 10 cm/3.94” from cardiac pacemakers or
implanted defibrillators. The headphones contain magnets that generate a magnetic field which could cause interference with cardiac pacemakers and implanted defibrillators.
왘 Do not use the product near water and do not expose it to rain or moisture to reduce the risk of fire or electric shock.
왘 Keep the product, accessories and packaging parts out of reach of children and pets to prevent accidents and choking hazards.
왘 Use only power supply units provided by Sennheiser.
Preventing damage to the product and malfunctions
왘 Always keep the product dry and do not expose it to extreme temperatures to avoid corrosion or deformation. The normal operating temperature is from 0 to 40°C/32 to 104°F.
왘 Use the product with care and store it in a clean, dust-free environment.
왘 Do not use the product if it is obviously defective, if it has been dropped
or if liquids or objects have gotten inside the product. In this case, contact a qualified specialist workshop or your Sennheiser service partner
to have the product checked.
왘 Switch the headphones off after use to conserve battery power.
Remove the batteries if the product will not be used for extended periods of time.
왘 Unplug the power supply unit from the AC wall outlet
– to completely disconnect the product from the power source,
– during lightning storms, or
– when unused for long periods of time.
왘 Ensure that the power supply unit is
– in a safe operating condition and easily accessible,
– properly plugged into the AC wall outlet,
– operated only within the permissible temperature range,
– not exposed to direct sunlight for longer periods of time in order to
prevent heat accumulation.
RS 165 | 3
Important safety information
왘 Do not place your headphones on a glass dummy head, chair armrest or
similar objects for long periods as this can widen the headband and
reduce the contact pressure of the headphones.
왘 Varnish or furniture polish may degrade the feet of the transmitter,
which could stain your furniture. You should therefore place the transmitter on a non-slip pad to avoid potential staining of furniture.
왘 Do not operate the product near heat sources.
왘 Clean the product only with a soft, dry cloth.
왘 Use only attachments/accessories/spare parts supplied or 
recommended by Sennheiser.
Intended use/Liability
This wireless headphone system is suitable for use with hi-fi systems,
TV sets, and home cinema systems.
This product is intended for private domestic use only. It is not suitable for
commercial use. This product is also not intended to be used with portable
audio devices.
It is considered improper use when this product is used for any application
not named in this instruction manual and the associated product guides.
Sennheiser does not accept liability for damage arising from abuse or misuse of this product and its attachments/accessories.
Before putting devices into operation, please observe the respective country-specific regulations.
4 | RS 165
Important safety information
Safety instructions for standard/rechargeable batteries
WARNING
In extreme cases, the standard/rechargeable batteries may leak and may
cause the following hazards if abused or misused:
•
•
•
•
explosion
fire
heat
smoke/gas
Keep away from
children.
Do not heat above 70°C/
158°F), e.g. do not expose to
sunlight or throw into a fire.
Do not expose to
moisture.
When not using rechargeable
batteries for extended periods
of time, charge them regularly
(about every 3 months).
Do not mutilate or
dismantle.
When not using the product for
an extended period of time,
remove the standard/
rechargeable batteries.
Observe correct polarity.
Use only rechargeable batteries
and chargers recommended by
Sennheiser.
Pack/store standard/
charged rechargeable
batteries so that the
terminals cannot
contact each other –
danger of shorting out/
fire hazard.
Do not continue using defective
standard/rechargeable
batteries and dispose of them
immediately.
Switch battery-powered
products off after use.
Immediately remove standard/
rechargeable batteries from an
obviously defective product.
Charge rechargeable
batteries at ambient
temperatures between
10 and 40°C/50 and
104°F.
Dispose of standard/
rechargeable batteries at
special collection points or
return them to your specialist
dealer.
Do not charge standard
batteries.
HR03
LR03
Do not mix standard and
rechargeable batteries in the
battery compartments.
RS 165 | 5
The RS 165 digital wireless headphone system
The RS 165 digital wireless headphone
system
Sennheiser’s RS 165 is the perfect introduction to the world of digital
wireless home entertainment. Its ergonomic, closed, circumaural design
reduces background noise while providing an exceptionally comfortable
fit, so that you can focus on enjoying your favorite television programs and
movies.
Easy to use and intuitive, all you need to do is to connect the included
multi-purpose transmitter to your home audio or entertainment system.
And because these headphones are from Sennheiser, you can count on a
vibrant, detailed sound reproduction. You’ll also be free to move around,
since the RS 165 provides a robust, digital wireless audio transmission with
minimum latency, and there is a Bass Boost listening mode for added
power.
Sennheiser’s RS 165: Get more from your TV and home audio today!
Features
6 | RS 165
•
Closed, circumaural headphones with excellent digital wireless audio
transmission
•
High-quality Sennheiser transducers and a selectable Bass Boost mode
for vibrant sound
•
Intelligently designed controls for maximum ease of use
•
Multi-purpose transmitter – also functions as “easy-charge“ cradle and
docking station
•
Multi-receiver transmission – transmitter supports up to 2 pairs of
headphones simultaneously
•
Ergonomic design for enhanced wearing comfort
•
2-year warranty
Package includes
Package includes
HDR 165 headphones
TR 165 transmitter
BASS
Power supply unit with multi-country adapters
EU
(EU, UK, US, AU)
US
UK
AU
Low self-discharge NiMH rechargeable batteries, AAA size
Stereo audio cable with 3.5 mm jack plugs, 2 m
Quick Guide
Quick guide
Safety Guide
Safety guide
Safety
Guide
Safety
Guide
RS 165 | 7
Product overview
Product overview
Overview of the HDR 165 headphones
1
2
3
4
8
5
7
6
8 | RS 165
1 Headband
5 Volume + button
2 Charging contacts
6 Volume – button
3 Ear pads
7 HDR power button
4 Ear cups/Battery compartments
8 HDR status LED
Product overview
Overview of the TR 165 transmitter
4
3
2
1
5
AU
DIO
IN
6
1 TR status LED
2 BASS button (with LED)
3 Charge status LED
4 Charging contacts
5 AUDIO IN Analog audio input (3.5 mm jack)
6 DC 9V 0.3A socket for the power supply unit
RS 165 | 9
Product overview
Overview of the indicators
LED indicators on the headphones
The LED indicators on the headphones and on the transmitter indicate the
current operating state. If you are not using the headphones, the LED indicators automatically dim after approx. 30 seconds to not disturb you.
HDR status LED
Meaning
The headphones are switched off.
The transmitter and headphones are
connected.
The transmitter and headphones are
connected and the rechargeable batteries
are almost empty.
1s
1s
10 | RS 165
1s
1s
The headphones are disconnected from or
cannot connect to the transmitter.
The headphones are disconnected from or
cannot connect to the transmitter and the
rechargeable batteries are almost empty.
Product overview
LED indicators on the transmitter
1
2
3
1
Charge status LED
Meaning
The transmitter is not charging.
The rechargeable batteries are being
charged.
The rechargeable batteries are fully
charged.
A charging/battery fault has been detected.
After taking the headphones from the holder of the transmitter, the charge
status LED indicates the approximate operating time of the headphones:
Charge status LED
Operating time
Battery capacity
up to 4 hours
0 to 25%
approx. 4 to 9 hours
25 to 50%
approx. 9 to 14 hours 50 to 75%
approx. 14 to 18 hours 75 to 100%
RS 165 | 11
Product overview
2
A
BASS button LED
Meaning
The dynamic bass boost is deactivated.
The dynamic bass boost is activated.
3
TR status LED
1s
Meaning
The transmitter is connected to the AC wall
outlet.
The transmitter is in standby mode.
The transmitter and headphones are
connected.
12 | RS 165
Putting the RS 165 into operation
Putting the RS 165 into operation
Setting up the transmitter
왘 Choose a suitable place near your audio source.
왘 Separate the transmitter and other wireless devices in a room by at
least 50 cm/20” to avoid interference.
왘 Do not place the transmitter close to metal objects such as shelf bars,
reinforced concrete walls, etc. as this can decrease the cover range of
the transmitter.
RS 165 | 13
Putting the RS 165 into operation
Connecting the transmitter to an audio source
You can connect the transmitter to different audio sources, such as a Blu-ray
player, a TV or a stereo hi-fi system.
You can also refer to the beginner’s video guides on how to connect
your digital wireless headphone system to a TV at
www.sennheiser.com/how-to-videos.
왘 Switch your audio source off before connecting the transmitter.
왘 Check the connection options available for your audio source (audio
output, usually marked “OUT”).
왘 Select the corresponding connection cable and, if necessary, a suitable
adapter.
왘 Depending on the connection option selected, go to the respective
chapter and follow the instructions on how to connect the transmitter
to an audio source.
Connection options available for
Connection cable
your audio source
A
B
Page
3.5 mm or 6.3 mm/¼“
jack socket
Stereo audio cable 
(with adapter 3.5 mm jack
socket to 6.3 mm/¼“ jack
plug; to be ordered separately)
15
RCA
Stereo audio cable with
adapter 3.5 mm jack socket
to 2 RCA plugs (to be ordered
separately)
16
You can purchase accessories and adapters from your local
Sennheiser partner.
14 | RS 165
Putting the RS 165 into operation
A
Connection option A: 3.5 mm or 6.3 mm/¼“ jack socket (analog)
Some TV models mute the loudspeakers when you connect the transmitter
to the headphone socket. Check in the menu of your TV to see if the muting
function can be deactivated. Alternatively, connect the TV and the transmitter using a different option (B).
왘 Switch your audio source off before connecting the transmitter.
왘 If necessary, connect the adapter 6.3 mm/¼“ jack plug onto the stereo
audio cable.
왘 Connect the stereo audio cable to the 3.5 mm jack socket of the transmitter and to the headphone socket of your audio source.
PH
ON
ES
*
VOLUME
* optional accessory
Adjust the volume of the headphone socket on your audio source to
at least about the medium level.
RS 165 | 15
Putting the RS 165 into operation
B
Connection option B: RCA
왘 Switch your audio source off before connecting the transmitter.
왘 Plug the RCA adapter onto the stereo audio cable.
왘 Connect the stereo audio cable to the 3.5 mm jack socket of the
transmitter.
왘 Connect the RCA adapter to the RCA outputs of your audio source (in
most cases “AUDIO OUT“). Connect the red RCA plug to the red RCA
socket and the white RCA plug to the white or black RCA socket.
OFF
L
AU
DIO
OU
T
R
*
* optional accessory
16 | RS 165
Putting the RS 165 into operation
Connecting the transmitter to an AC wall outlet
1 Select a suitable country adapter and slide it onto the power supply
unit until it locks firmly in place.
2 Connect the power supply unit connector to the power input socket of
the transmitter.
3 Plug the power supply unit into an AC wall outlet.
The TR status LED
lights up for a second. The transmitter is in
standby mode.
1
STANDBY
3
EU
UK
2
US
AU
RS 165 | 17
Putting the RS 165 into operation
Replacing and inserting the rechargeable batteries
1 Lightly twist the ear pads counterclockwise until you overcome a slight
resistance.
2 Lift the ear pads off the ear cups to reveal the battery compartments.
3 Insert the rechargeable batteries into the compartments. To replace the
batteries, pull the batteries out of the compartments and insert the
new ones. Be sure to observe correct polarity when inserting the batteries. Please dispose old batteries as special waste or return them to
your specialist dealer.
4 Hook the ear pads onto the ear cups. As you put back the ear pads,
observe the L (left) and R (right) markings on the rear of the ear pads.
5 Twist the ear pads clockwise until you hear a click sound. Ensure that
they are locked firmly onto the ear cups.
1
2
3
4
5
NEW
You can also power the headphones using standard batteries (AAA
size, 1.5 V). Note however, that standard batteries are not rechargeable, and if you are using non-rechargeable batteries, you must not
place the headphones on the headphones holder.
18 | RS 165
Putting the RS 165 into operation
Charging the rechargeable batteries
CAUTION Danger of damage to the headphones!
If you insert non-rechargeable batteries into the battery
compartments, the batteries may leak during charging and
can damage your headphones.
왘 Do not place the headphones on the headphones holder if
you are using non-rechargeable batteries.
8.5h
In general, a complete charging cycle takes about 8.5 hours. However,
before using the headphones for the first time, charge the rechargeable
batteries for at least 16 hours without interruption to optimize the performance of the batteries.
When the rechargeable batteries are almost empty, the HDR status LED
turns red and you hear beeps in the headphones. The headphones switch
off after few minutes.
왘 Place the headphones on the headphones holder of the transmitter.
You may place the headphones on either side provided that the
charging contacts of the headphones and the transmitter connect.
The headphones automatically switch off and the Charge status LED
on the transmitter lights up red. When the rechargeable batteries are
fully charged, the Charge status LED
turns green.
100%
When not in use, place the headphones on the headphones holder to
ensure that batteries are fully charged when needed. The transmitter utilizes an intelligent battery charging technology that prevents
overcharging.
After taking the headphones from the holder of the transmitter, the
charge status LED indicates the approximate operating time of the
headphones (see page 11).
RS 165 | 19
Putting the RS 165 into operation
Adjusting the headband
For good sound quality and best possible wearing comfort, the headband
has to be adjusted to properly fit your head. The headphones feature an
adjustable headband with a snap-in locking mechanism for easy adjustment.
왘 Wear the headphones so that the headband runs over the top of your
head. Observe the L (left) and R (right) markings on the outer headband when putting the headphones on.
왘 Adjust the length of the headband until
– your ears are comfortably covered by the ear pads,
– you feel even, gentle pressure around your ears,
– a snug fit of the headband on the head is ensured.
R
R
20 | RS 165
Putting the RS 165 into operation
Using the RS 165 headphone system
Switching your wireless headphone system on
WARNING
Danger due to high volume levels!
Listening at high volume levels can lead to permanent hearing
defects.
왘 Before putting the headphones on, adjust the volume on the
headphones to a low level.
왘 Do not expose yourself to high volume levels for long periods of
time.
1 Switch your audio source on.
If you are using the headphone socket (see page 15) to connect to your
audio source, adjust the volume of the headphone socket on your audio
source (e.g. TV) to at least the medium level.
VOLUME
2 Press and hold the HDR power button for approx. 2 seconds to switch
the headphones on.
The transmitter in standby mode recognizes the active paired headphones and automatically transmits a signal. The status LEDs on the
transmitter and the headphones light up green.
1
2
ON
2s
AUTO-ON
If the headphones are brought outside the transmission range or if
there is no audio signal received from the transmitter for more than
5 minutes, the headphones switch off automatically.
RS 165 | 21
Putting the RS 165 into operation
Adjusting the volume
왘 Press the Volume + button or the Volume – button repeatedly until the
volume is adjusted to a desired level. When the minimum or maximum
volume setting is reached, you hear a beep in the headphones.
Vol
Vol
Muting/unmuting the headphones
왘 Press the HDR power button
왘 Press the HDR power button
cancel the muting.
to mute the headphones.
or any of the Volume +/– buttons to
If the headphones are muted for 15 minutes, the headphones switch
off automatically to save energy.
22 | RS 165
Putting the RS 165 into operation
Activating/deactivating the dynamic bass boost
The dynamic bass boost feature allows you to select 2 different levels of
bass intensity. You can activate or deactivate the dynamic bass boost from
the transmitter or directly from your headphones.
왘 Press the BASS button either on the headphones or the transmitter.
The bass boost effect switches between on and off modes, as indicated
by the BASS LED indicator.
OR
BASS LED
bass boost
direct
BASS
Meaning
The bass boost effect is active.
BASS
The bass boost effect is inactive.
BASS
RS 165 | 23
Putting the RS 165 into operation
Pairing headphones to the transmitter
The headphones and the transmitter enclosed in this package have been
paired from the factory. The following procedure is only necessary if you
have cleared all pairing information from your wireless headphone system
and you want to revive the lost pairing, or if you want to pair another set
of headphones to the transmitter.
You can connect up to 2 paired headphones simultaneously with your
TR 165 transmitter.
왘 Place the headphones on the headphones holder of the transmitter for
a second.
The Charge status LED
on the transmitter lights up red. The
headphones are paired to the transmitter.
1s
24 | RS 165
Putting the RS 165 into operation
Switching your wireless headphones off
There are two ways to switch your wireless headphones off.
A
왘 Press and hold the HDR power button for approx. 2 seconds.
The headphones switch off. If no other pair of active wireless headphones is connected to the transmitter, the transmitter switches to
standby mode. All LEDs are off.
OFF
AUTO-STANDBY
2s
B
왘 Place the headphones on the headphone holder of the transmitter.
The headphones switch off and the charging process starts (see
page 19). If no other pair of active wireless headphones is connected to
the transmitter, the transmitter switches to standby mode.
OFF
AUTOSTANDBY
To disconnect the transmitter from the power source, unplug the
power supply unit from the AC wall outlet.
RS 165 | 25
Cleaning and maintaining the RS 165
Cleaning and maintaining the RS 165
CAUTION
Liquids can damage the electronics of the product!
Liquids entering the housing of the product can cause a short-circuit and
damage the electronics.
왘 Keep all liquids away from the product.
왘 Do not use any cleansing agents or solvents.
To clean the wireless headphone system:
왘 Switch your wireless headphone system off and disconnect the transmitter from the AC wall outlet before cleaning.
왘 Clean the product only with a soft, dry cloth.
Replacing the ear pads
For reasons of hygiene, you should replace the ear pads from time to time.
Spare ear pads are available at your local Sennheiser partner.
1 Lightly twist the ear pads counterclockwise until you overcome a slight
resistance.
2 Lift the ear pads off the ear cups and dispose of them properly.
3 Hook the new ear pads onto the ear cups. Observe the L (left) and
R (right) markings on the rear of the ear pads.
4 Twist the ear pads clockwise until you hear a click sound. Ensure that
they are locked firmly onto the ear cups.
1
2
3
4
You can have the headband padding replaced by the repair service.
Please contact your Sennheiser partner.
26 | RS 165
Troubleshooting
Troubleshooting
Sound problems
Problem
Possible cause
Possible solutions
Headphones are switched off.
Switch the headphones on.
21
No power connection.
Check the connection of the power supply
unit.
17
Headphones are muted.
Deactivate the muting function.
22
Audio plug is not properly connected.
Check the audio plug connection.
13
Audio source is switched off.
Switch the audio source on.
–
Volume of the analog audio source is
either set to the minimum or is on mute.
Increase the volume on the audio source
to at least a medium level/Deactivate the
muting function from the audio source.
–
Audio cable is defective.
Replace the audio cable.
–
Headphones are not correctly paired
with the transmitter (e.g. additional
headphones).
Pair the headphones with the transmitter
again.
24
Headphones are out of the transmitter’s
range.
Reduce the distance between
headphones and transmitter.
–
Signal is shielded.
Remove obstacles between the
transmitter and headphones.
–
Change the position of the transmitter
or of the headphones.
13
Ensure that the transmitter is separated
from other wireless devices by at least
50 cm/20”.
–
Headphone volume is adjusted too low.
Increase the volume on the headphones.
22
Volume of the analog audio source is
adjusted too low.
Increase the volume on the analog audio
source to at least a medium level.
–
Audio cable is not properly connected.
Check the plug connection.
13
Audio cable is defective.
Replace the audio cable.
–
Signal of the audio source is distorted.
Reduce the volume of the audio source.
–
Headphone volume is adjusted too high.
Reduce the volume on the headphones.
22
Volume of the analog audio source is
adjusted too high.
Decrease the volume of the analog audio
source at least to a medium volume level.
–
No sound
Sound
dropouts/
no sound
Sound is too
low
Sound only on
one ear
Sound is
distorted
There are interfering devices
(e.g. WLAN routers, Bluetooth devices
or microwaves) in the vicinity.
Page
RS 165 | 27
Troubleshooting
Other problems
Problem
Possible cause
Possible solutions
Transmitter
does not turn
on
No power connection.
Check the connection of the power supply
unit.
17
The rechargeable batteries are almost
empty.
Recharge the rechargeable batteries.
19
Insert the rechargeable batteries.
18
Remove the rechargeable batteries from
the headphones and reinsert them again.
Observe correct polarity.
18
Operating time The rechargeable batteries are
decreases
exhausted.
Replace the rechargeable batteries with
new ones.
18
You hear
beeps in the
headphones
The rechargeable batteries are almost
drained.
Recharge the rechargeable batteries.
19
Distance to the transmitter is too large.
Reduce the distance to the transmitter.
–
Headphones are not paired with the
transmitter.
Pair the headphones with the transmitter.
–
Another set of headphones is being
charged so I can‘t pair my second
headphones.
Perform a proximity pairing:
1. Place the headphones as close as
possible to the transmitter.
2. Switch the headphones on.
3. Press the Volume +/- buttons
simultaneously for about 7 seconds.
–
Headphones are not compatible.
Use Sennheiser HDR 165, 175, 185, or
195 wireless headphones only.
–
No batteries inside the battery
Headphones
compartments.
do not turn on
The rechargeable batteries are inserted
the wrong way round.
Headphones
cannot be
connected
to the
transmitter
Page
If you encounter a problem that is not listed in the table, or if the solutions provided do not work, please visit
the RS 165 product page at www.sennheiser.com for the most up-to-date list of frequently asked questions.
You may also contact your local Sennheiser service partner for assistance. To find a Sennheiser service partner
in your country, visit www.sennheiser.com.
28 | RS 165
Troubleshooting
Leaving the range of the transmitter
The range of the transmitter largely depends on environmental conditions
such as wall thickness, wall composition etc. If the headphones leave the
range of the transmitter, the audio first cuts out occasionally until it finally
cuts out completely.
BASS
If you re-enter the transmission range within 5 minutes, the connection is
automatically re-established.
If you spend more than 5 minutes outside the transmission range, the
headphones switch off automatically.
Clearing the pair settings on the headphones
1 Press the Volume +/- buttons simultaneously and hold for 2 seconds.
The HDR status LED blinks red rapidly.
2 Press the HDR power button while continuously holding the Volume
+/- buttons. Release all 3 buttons.
The HDR status LED lights up green or red, depending on the battery
condition, and starts blinking slowly. The pair settings on the headphones are cleared.
1
2
BASS
BASS
2s
RS 165 | 29
Specifications
Specifications
RS 165 headphone system
Carrier frequency
2.40 to 2.48 GHz
Modulation
8-FSK Digital
SNR
typ. 85 dBA at 1 Vrms
RF output power
max. 10 dBm
Transmission range
up to 30 m/98 ft line of sight
Max. number of
simultaneously connected
headphones
2
Temperature range
Operation: 0°C to +40°C/32°F to 104°F
Storage: -25°C to +70°C/-13°F to 158°F
Relative humidity
Operation: 10 to 80%, non condensing
Storage: 10 to 90%
HDR 165 headphones
Transducer principle
circumaural, closed
Transducer system
dynamic, neodymium magnets
Frequency response
18 Hz to 21 kHz
Max. SPL
max. 106 dB at 1 kHz, 3% THD
THD
< 0.5% at 1 kHz, 100 dB SPL
Operating time
up to 18 hours
Charging time of 
rechargeable batteries
up to 8 hours 30 min
Power supply
2 AAA size low self-discharge NiMH
rechargeable batteries, 1.2 V, 820 mAh
Weight (incl. batteries)
approx. 300 g
Dimensions (W x H x D)
approx. 17 cm x 20 cm x 9.5 cm
TR 165 transmitter
Connections
analog: 3.5 mm stereo jack socket
Power supply
9V
Power consumption
Operation: typ. 4 W
Standby mode: ≤ 0.3 W (without
charging)
Dimensions (W x H x D)
approx. 12.7 cm x 23.4 cm x 10 cm
, 300 mA
Sennheiser NT 9-3AW power supply unit
Nominal input voltage/
current
30 | RS 165
100–240 V~ /
100 mA
Mains frequency
50–60 Hz
Nominal output voltage
9V
Nominal output current
300 mA
Temperature range
Operation: 0 °C to +40 °C
Storage: -40 °C to +85 °C
Relative humidity
Operation: 0 to 90 %, non condensing
Storage: 0 bis 90 %
Manufacturer declarations
Manufacturer declarations
Warranty
Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this
product.
For the current warranty conditions, please visit our website at
www.sennheiser.com or contact your Sennheiser partner.
FOR AUSTRALIA ONLY
Sennheiser goods come with guarantees that cannot be excluded under
the Australian Consumer Law. You are entitled to a replacement or refund
for a major failure and compensation for any other reasonably foreseeable
loss or damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of acceptable quality and the failure does
not amount to a major failure.
This warranty is in addition to other rights or remedies under law. Nothing
in this warranty excludes, limits or modifies any liability of Sennheiser
which is imposed by law, or limits or modifies any remedy available to the
consumer which is granted by law.
To make a claim under this warranty, contact Sennheiser Australia Pty Ltd,
Unit 3, 31 Gibbes Street Chatswood NSW 2067, Australia; 
Phone: (02) 9910 6700, email: service@sennheiser.com.au
All expenses of claiming the warranty will be borne by the person making
the claim.
The Sennheiser International Warranty is provided by Sennheiser Australia
Pty Ltd (ABN 68 165 388 312), Unit 3, 31 Gibbes Street Chatswood NSW
2067, Australia.
In compliance with the following requirements
EU Declaration of Conformity
• ErP Directive (2009/125/EC)
• RoHS Directive (2011/65/EU)
Hereby, Sennheiser electronic GmbH & Co. KG declares that the radio
equipment type RS 165 (TR 165, HDR 165) is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the
following internet address: www.sennheiser.com/download.
Notes on disposal
• WEEE Directive (2012/19/EU)
• Battery Directive (2006/66/EC & 2013/56/EU)
The symbol of the crossed-out wheeled bin on the product, the battery/
rechargeable battery and/or the packaging indicates that these products
must not be disposed of with normal household waste, but must be disposed of separately at the end of their operational lifetime. For packaging
disposal, please observe the legal regulations on waste segregation applicable in your country.
Further information on the recycling of theses products can be obtained
from your municipal administration, from the municipal collection points,
or from your Sennheiser partner.
The separate collection of waste electrical and electronic equipment, batteries/rechargeable batteries and packagings is used to promote the reuse
and recycling and to prevent negative effects caused by e.g. potentially
hazardous substances contained in these products. Herewith you make an
important contribution to the protection of the environment and public
health.
RS 165 | 31
Statements regarding FCC and Industry Canada
FCC Declaration of Conformity (DoC)
SENNHEISER
Model No: TR 165, HDR 165
We,
Sennheiser Electronic Corporation
One Enterprise Drive • Old Lyme •
CT 06371 • USA
Tel: +1 (860) 434 9190
Fax: +1 (860) 434 1759
declare the above device comply with the requirements of Federal Communications Commission.
This device complies with Part 15 of the FCC rules. Operation is subjected to the following two conditions:
1) This device may not cause harmful interference, and
2) This device must accept any interference received, including interference that may cause undesired operation.
Responsible Party: Michael Lieske
This device complies with Part 15 of the FCC Rules and with RSS-210 of
Industry Canada. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may
cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
CAN ICES-3 (B)/NMB-3(B)
RF Radiation Exposure Information
Since the radiated output power of this device is far below the FCC radio
frequency exposure limits, it is not subjected to routine RF exposure evaluation as per Section 2.1093 of the FCC rules.
Trademarks
Sennheiser is a registered trademark of Sennheiser electronic GmbH & Co. KG.
Other product and company names mentioned in this instruction manual may
be the trademarks or registered trademarks of their respective holders.
Manufacturer declarations
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
www.sennheiser.com
Publ. 08/17, A04
RS 165 | 33
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