2014010 CSR8635 V1.1
USER’S MANUAL
Boost-4
Bluetooth Stereo Speaker
with
Aux Input & NFC
Splash-proof
For more information: www.lenco.com
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2014010 CSR8635 V1.1
A. Warning
Don’ts
• Do not place naked flames, such as lighted candles on or near the
product.
• Do not place objects filled with liquids, such as vases on or near the
product.
• Do not use or store this product in a place where it is subject to direct
sunlight, heat, excessive dust or vibration.
• Do not use this product with wet hands.
• Do not block or cover the slots and holes in the product.
• Do not push foreign objects into the slots or holes in the product.
• Do not attempt to open this product yourself. There are no user
serviceable parts inside.
• Do not allow children access to plastic bags.
Safety Instructions
Before using this product, read and follow all warnings and instructions.
• This product is not intended for use by young children. Young children
should be properly supervised.
• This product is intended for household use only and not for
commercial or industrial use.
• No naked flame sources, such as lighted candles, should be placed on
the product.
• Ventilation should not be impeded by covering ventilation openings
with items such as newspapers, table cloths, curtains and the like.
• Make sure the unit is adjusted to a stable position. Damage caused by
using this product in an unstable position or by failure to follow any
other warning or precaution contained within this user manual will
not be covered by warranty.
• Never remove the casing of this apparatus.
• Never place this apparatus on the other electrical equipment.
We, suggest retaining the packaging in case for future transport of the
product.
WARNING: • Never remove the casing of this apparatus.
• Never place this apparatus on the other electrical
equipment.
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2014010 CSR8635 V1.1
B. Outlook and Controls
Back View
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2
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3
4
Top View
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6
7
8
9
10
11
Front View
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2014010 CSR8635 V1.1
Item
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
Micro USB socket (DC Input: DC 5V 1A)
Power Switch ON – OFF
AUX IN (3.5mm Jack, Stereo)
Foot Stand
MIC Position (for hand-free)
Button (for Bluetooth Searching)
/ Button (Play/Pause, Pick up/Hang up call/Last dialed, AUX)
Button (Volume down, Previous track)
Button (Volume up, Next track)
NFC Sensor Position (for Bluetooth pair)
Mode LED (3 in 1; Charge-Red, Bluetooth-Blue, AUX IN-Green)
Left Bass Radiator (Passive Speaker)
Right Bass Radiator (Passive Speaker)
Left Speaker
Right Speaker
Rubber Seal Cover (for splash-proof)
C. About the rechargeable Battery
This Bluetooth Speaker has an internal, non–user-replaceable battery.
For best results, the first time you use this Bluetooth Speaker, let it charge
for about 6 hours or until the charging LED indicator light from On to off
which show you the battery is fully charged.
For maintain the battery life and performance, if speaker isn’t used for
a while, the battery might need to be recharged. Charge the battery at
least once every month.
To charge the rechargeable battery:
1. Connect the Bluetooth Speaker’s “Micro USB socket (1)” with the
USB power charger which able to provides output at least DC 5V 1A
for charge connection via the USB cable. Or,
2. Connect the Bluetooth Speaker’s “Micro USB socket (1)” with the
Computer’s USB port which is USB 3.0 standard.
3. The “Charge (11)” LED will turn On in red, the battery is in charging.
4. The “Charge (11)” LEDwill turn Off when the rechargeable battery is
fully charged.
5. Disconnect the USB cable when it is done.
Important:
Only use charge function if you connected the Bluetooth Speaker to
USB 2.0 port of the computer. (it need longer time to charge the
battery fully)
The Bluetooth Speaker may works unstable if you use USB 2.0 port of
computer for charging and music playing function together. Use USB
3.0 port to instead in this case.
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2014010 CSR8635 V1.1
D. Power ON and Pairing
1. Slide the “Power Switch (2)” to “ON” position to turn On the device,
the Bluetooth searching / reconnect function are open;
2. A series of tones will sound and the “Bluetooth (11)” LED is fast
blinking in blue.
3. Then, activate the Bluetooth function in your Bluetooth device (such
as Mobile Phone or Personal Computer); the device will enter to
Bluetooth searching mode automatically, if not, tap the relate
selection to manually enter to searching mode. (refer to your device’s
manual when necessary)
4. Your Bluetooth device should show “Lenco Boost-4” in list, and then
select it for pairing. Waiting for some seconds and you will see
connected message as shown on your mobile device. (For some
Bluetooth devices, you may need to input “0000” as pairing
password)
5. If pairing is successful, a tone will sound and the “Bluetooth (11)” LED
will keep lighting blue from blinking.
6. Now, you can start to music play from the mobile device by its music
player program.
7. Slide the “Power Switch (2)” to “OFF” position to turn Off the device
when it is not in use.
E. Disconnect from paired device
1. To disconnect with paired device and for better result, turn Off the
Bluetooth Speaker by slide the “Power Switch (2)” to “OFF” directly;
2. Or, you can choose “Disconnect” from Bluetooth paired device list on
your mobile device;
3. In this case; the Bluetooth Speaker will turn back into “Searching /
Pairing” mode in seconds, a series of tones will sound and the
“Bluetooth (11)” LED will turn to fast blinking in blue from lighting.
4. Now, you can process for new mobile device pair or power Off the
Bluetooth Speaker if you wanted.
F. Auto reconnect with paired device
1. Every time you turn On the Bluetooth Speaker’s power; it will firstly
searching for the mobile device which has been paired previously and
still in record;
2. The Bluetooth Speaker will reconnect this mobile device as priority if
it in Bluetooth searching device mode and in connection range.
3. If no device found in some seconds, then the Bluetooth Speaker will
automatically turn into pairing mode.
4. Now you can process for new mobile device pair. (refer to item D.3 ~
D.6 methods)
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2014010 CSR8635 V1.1
G. Switch to new pairing from connected mode
1. In Bluetooth connected mode, you can switch the Bluetooth Speaker
into Bluetooth searching mode for paring with the new device at any
time you desired;
2. Press and hold the “ (6)” button until a series of tones sound and
the “Bluetooth (11)” LED will turn to fast blinking in blue from
lighting.
3. Now you can process for new mobile device pair. (refer to item D.3 ~
D.6 methods)
H.
a.
1.
2.
Use NFC for fast Bluetooth pairing
On Bluetooth Speaker:
Slide the “Power Switch (2)” to “ON” position.
Make sure that the NFC detection mark “
(10)” is at the right
place to touch.
b. On Mobile Phone:
1. Make sure that the mobile phone has the NFC function turned on and
the screen is active (unlocked).
2. Touch the mobile device NFC sensor on the Bluetooth Speaker’s NFC
detection mark. Keep touching until the mobile device vibrates and or
sound. (When the devices connect, some mobile phone may pop up a
dialog box to confirm on it screen)
3. After pairing is successful; from Bluetooth speaker, a tones will sound
and the “Bluetooth (11)” LED will keep lighting in Blue from blinking.
4. To disconnect the Bluetooth Speaker from an NFC connected phone,
touch it with the mobile device again.
Hint: If you cannot connect the unit, try the following:
Move the mobile phone slowly over the “NFC” mark of the Bluetooth
Speaker.
If the mobile phone is in case (especially metal), remove it from the
case.
I. Bluetooth Music Playing Controls (two way function)
a. On your Bluetooth Device:
1. Switch to music player menu and choose a music to start the play
from playlist or by using “
/
” button/icon. Play/Pause the
playing music by using “ / ” button/icon.
2. To adjust the volume level by using the device’s volume control
“Down / Up” button/icon on your Bluetooth device. (refer to your
device user’s manual when necessary)
b. On Bluetooth Speaker:
1. In playing music, press “ / (7)” button to pause the playing music.
Press it again to resume.
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2014010 CSR8635 V1.1
2. Press and hold the “ (9)” button to increases the volume level.
3. Press and hold the “ (8)” button to decreases the volume level.
4. When maximum or minimum volume is reached, a beep sound will
be heard.
5. Press the “ (9)” button to change next music file play.
6. Press the “ (8)” button to change previous music file play.
J. Hand Free Function
1. When there is an incoming call during Bluetooth music playing mode;
2. The ringing sound will up and the playing music will pause
automatically.
3. Press and hold “ / (7)” button to reject the call if you want. Or,
4. Press “ / (7)” button to pick up the call.
5. Now you have hand free function with the Bluetooth speaker.
6. Press “ / (7)” again to hang up the call when finished. And the
paused music will resume automatically.
Tip: speak to the “MIC (5)” direct with distance in 30 ~ 60cm to get the
best speakerphone performance when necessary.
K. Redial For Last Call Function
1. To redial for last called number by the Bluetooth Speaker, even it is in
music playing mode.
2. Press twice the “ / (7)” button to enter into redial function, the
playing will pause and switch to hand free function for redial.
3. Press the “ / (7)” Button again to hang up the redial call.
4. Make sure that your mobile phone has have last dial call used, if not,
the redial for last call function cannot be activated.
L. Low Power Reminder And Auto Sleep
1. The Bluetooth Speaker will send tones sound out from speaker by
every minute. When you heard this reminder, please connect the
device to the USB power for charging, if you still want to use the
device.
2. If not, the Bluetooth Speaker will power Off to sleep mode when the
battery is keeping low energy level in some minutes.
3. In this case, the device cannot be turned On, until you recharging the
battery at least 10 ~ 15 minutes, because the rechargeable battery
has not enough energy.
M. Use AUX IN Function
In this design, the Bluetooth module give priority to Bluetooth
function as master, the AUX In function is become slave, if Bluetooth has
been connected and in playing mode.
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2014010 CSR8635 V1.1
a. Use AUX In under power ON mode: (Bluetooth un-paired)
1. Make sure that the external device has switched on and controlled to
AUX output source with music playing.
2. Slide the “Power Switch (2)” to “ON” position to turn on the device;
3. Connect the Bluetooth Speaker’s “AUX IN (3)” jack with an external
device’s “Earphone / AUX / LINE” jack output through the Audio
cable.
4. The mode will switch to “AUX IN” function automatically and the
“AUX IN (11)” LED will turn On in green with blinking blue. Now, the
Bluetooth Speaker’s AUX In function is in use.
b. Use AUX In under Bluetooth music playing mode:
1. In Bluetooth music playing mode, connect the Bluetooth Speaker’s
“AUX IN (3)” jack with an external device’s “Earphone / AUX / LINE”
Output through the Audio cable. The “AUX In (11)” LED will turn On in
green with blue.
2. In this case, the Bluetooth Speaker allow to switch over in between
the “AUX In” mode and “Bluetooth music playing” mode by press the
“ / (7)” button or tap the
icon on your mobile device.
3. However, the waiting time of mode change will taking about 3 ~ 10
seconds depending on mobile phone’s OS. (example: 3 seconds for
Android’s mobile device or 10 seconds for iOS’s devices)
4. Or, press and hold the “ (6)” button to quick switch to AUX IN mode
if you want. The Bluetooth will disconnect automatically.
5. For Bluetooth reconnection, tap “Lenco Boost-4” in paired devices list
on you mobile device.
Note: the Bluetooth is staying at controlling mode at behind, so that the
Bluetooth mode LED is keep lighting or blinking in blue)
c. To adjust volume level:
1. Pressing or press and hold “ (8)” button to decrease the volume.
2. Pressing or press and hold “ (9)” button to increase the volume.
N. Splash-proof Handling
1. Make sure that the splash-proof “Rubber Seal Cover (16)” it tightens
closed at the right position.
2. The Bluetooth Speaker can handle a brief jet of water on its surface
(IPX4 Splash-proof). However, it should never be operated under
running water and under no circumstance it should never be fully
immersed in water.
3. Always wipe the Bluetooth Speaker surface thoroughly if it becomes
wet with moisture or water splashes. This will help to prevent the
internal parts of the unit from entry of water and possible moisture
damage.
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2014010 CSR8635 V1.1
O. Trouble Shooting
No power
• Check battery is it charged with enough energy.
• Check whether the device is in power OFF mode.
• Check whether volume level is in lower position on
your Bluetooth speaker and mobile device.
• Make sure that your Bluetooth device is within the
effective operation range.
No sound
• Check whether the Bluetooth device is paired.
• Check whether the Bluetooth device show
connected.
• Check if you have selected the correct audio
source.
No response from • Restart the speaker by power Off and On.
speaker
P. Specification
Dimension
Weight
179 mm (L) x 65 mm (D) x 70.5 mm (H)
348g (Approximate)
Specification
V2.1 + EDR
Bluetooth
Supported Profile
A2DP, AVRCP, HSP
Connection Distance In 10 meters (open area)
Lithium 3.7V, 3000mAh
Built-In Battery
Playing Time: 6 ~ 8 Hours
(at 75 ~ 80 % of volume setting)
Micro USB Port
Power Source Input
DC 5V, 1000mA
Output Power
3W (RMS) x 2 (4 Ohm)
Audio
Frequency
20Hz to 20,000Hz
Responses
I/O
Audio In Link
800mV RMS, 10K Ohm
NFC Connect
For Bluetooth pair
Splash-proof
IPX-4
Operating Temperature 0 to 40℃
Q. Disclaimer
Updates to Firmware and/or hardware components are made
regularly. Therefore some of the instruction, specifications and pictures in
this documentation may differ slightly from your particular situation. All
items described in this guide for illustration purposes only and may not
apply to particular situation. No legal right or entitlements may be
obtained from the description made in this manual.
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2014010 CSR8635 V1.1
R. Service and Support
For information: www.lenco.com
For support: http://lencosupport.zendesk.com
Lenco helpdesk:
Germany
0900-1520530 (Local charges)
The Netherlands 0900-23553626 (Local charges + 1ct p/min)
Belgium
02-6200115
(Local charges)
France
03-81484280 (Local charges)
The helpdesk is accessible from Monday till Friday from 9 AM till 6 PM.
When contacting Lenco, you will always be asked for the model and serial
number of your product. The serial number can be found on the back of
the device. Please write down the serial number below:
Model: Boost-4
Serial number:_________________________________
Lenco offers service and warranty in accordance to European law, which
means that in case of repairs (both during and after the warranty period)
you should contact your local dealer.
Important note: It is not possible to send products that need repairs to
Lenco directly.
Important note: If this unit is opened or accessed by a non-official service
center in any way, the warranty expires.
This device is not suitable for professional use. In case of professional
use, all warranty obligations of the manufacturer will be voided.
S. Recycling
This symbol indicates that the relevant electrical product
or battery should not be disposed of as general household
waste in Europe. To ensure the correct waste treatment of
the product and battery, please dispose them in accordance
to any applicable local laws of requirement for disposal of
electrical equipment or batteries. In so doing, you will help
to conserve natural resources and improve standards of
environmental protection in treatment and disposal of
electrical waste (Waste Electrical and Electronic Equipment Directive).
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2014010 CSR8635 V1.1
T. CE Maring
Products with the CE marking comply with the EMC
Directive (2004/108/EC) and the Low Voltage Directive
(2006/95/EC) issued by the Commission of the European
Community.
Hereby, STL Group BV, Ankerkade 20 NL 5928 PL Venlo, declares that this
product is in compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.
The declaration of conformity may be consulted at
https://lencosupport.zendesk.com/forums/22413161-CE-Documents
This product operates at 2400 - 2483.5 MHz and is designated only to be
used inside a normal household environment. This product is suited for
this purpose within all EU counties.
®All rights reserved
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