1. Product overview 2. Accessories 3. Pairing

1. Product overview 2. Accessories 3. Pairing
1. Product overview
2. Accessories
3. Pairing / Connecting
Step 1 Ensure the headset is off.
Step 2 Press and hold the multi-function button for about 7 seconds until LED blinks BLUE and RED
alternately.
Step 3 Activate Bluetooth on your phone, and set it to search for new devices.
Step 4 Select “Avantree 4GS”. If necessary, enter passkey 0000/accept connection.
Once paired and connected, the headset will automatically connect to your phone whenever you turn
the headset on again, provided it is in range.
The headset will automatically switch itself off if disconnected for about 30 minutes.
4. Multipoint – Connect with two phones simultaneously
Step 1 Pair and connect headset with the first phone as above.
Step 2 Pair and connect headset with the second phone as above.
Step 3 Turn headset off and on again, it will automatically search and connect with the last two
paired phones.
5. How to use
Power on
Power off
MFB
button
+
button
button
Answer a call
End a call
Reject a call
Re-dialing
Voice dial / Voice
command
(phone feature)
Get into pairing
mode
Press and hold the MFB for 3 seconds until blue LED
flashes 3 times
Press and hold the MFB for 3 seconds until red LED
flashes twice
Press MFB once
Press MFB once
Press and hold MFB for 3 seconds
Double click MFB
Press MFB once
Press and hold MFB until the LED blinks alternatively
RED and BLUE.
Volume up
Press + button once
Volume down
Press - button once
6. How to charge
When the battery power is low, the LED will flash red and an audible prompt is given every 15
seconds. Please charge the headphones via the supplied USB to AC adapter or PC USB port. It
normally takes about 3 hours to fully charge the battery. The LED will stay red when charging and will
turn off when charging is complete.
Note: AC adapter requirement 5V / 500mA-2A.
7. Product Specification
* Bluetooth compliance: Bluetooth 3.0
* Operating frequency band: 2.4GSHz ~ 2.48GHz unlicensed ISM band
* Operation ranger: Class 2, up to 10 meters
* Support profiles: HSP, HFP and A2DP profile
* Integrated with echo cancellation.
* Built-in speaker and microphone.
* Stand-by time: up to 120 hours
* Talk time: up to 5 hours
* Battery charging Time: about 2~3 hours
* Charger voltage / current: DC5.0V 500mA~2A
* Battery type: Rechargeable lithium battery
* Dimensions: 49 x 20 x 16mm
* Weight: 8.0g
Note: The talk time, music time and standby time may vary when used with different mobile phones
or other compatible Bluetooth devices, usage settings, usage styles, music formats and environments.
For more FAQ information, please refer to support.avantree.com
Z-PKMN-BTHS4GS-00V4
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