User Manual

Use the headphone independently with cellphone

Headphone can be separately used with cell phone, please follow the step-by-step instruction below：

· Ensure the transmitter is o.

· Enter the headphones into PAIRING MODE - from its OFF state, press and hold the MFB for 5 seconds until

the LED ashes RED and BLUE alternately, and you hear “Pairing” from the headphones.

· Turn on Bluetooth on your smart phone/tablet. Find & select “Avantree AS9S” to pair and connect.

The next time, you want to use your headphones in this way you will need to select “ Avantree AS9S” on

your smart phone /tablet to reconnect.

Clear paired history

Clear the paired history of the transmitter

After power on, press and hold BOTH and together for 7 seconds, both will be on BLUE for 2 seconds,

then enter pairing mode automatically, close to ashes RED and BLUE alternately.

Clear the paired history of the headphones

After turning on, press and hold both “+” and “-” for 10 seconds until the RED and BLUE LEDs are BOTH on

for 2 seconds (looks PINK) - now all the paired history of the headphones is cleared. It then enters pairing

mode automatically with the LED ashing alternately RED and BLUE.

Headphone charging

Please charge the headphones if you hear the “low battery” voice prompt. You can charge using a phone

charger (5V/500mA-2A output), PC USB port, TV USB port or any other USB outlet using the included USB

cable.

It takes about 3.5 hours to fully charge the headphones. The LED will turn RED during charging and auto-

matically turn o once charging is complete.

Troubleshooting

BLACK headphone fails to reconnect to the transmitter

Normally, click once , it will reconnect to the transmitter. If it fails, then:

Step 1 - Manually enter both the BLACK headphone and transmitter into PAIRING mode to connect them.

Once connected, close to turn solid BLUE.

Bluetooth

Settings

Bluetooth

Devices

Avantree AS9S

Step 2 -Press and hold for 10 seconds to LOCK them, once successfully locked, close to lights up

PINK for 5 seconds.

Cannot adjust volume on headphone

Click +/- to raise or lower volume.

1) Do not click the button too fast;

2) do not press and hold the button .

One will hear “beep” when the volume reaches maximum.

More FAQs on https://avantree.com/product-support/BTHT-41899-BLK