How to Adjust Volume on the Headphones
You may adjust the volume via the + and - buttons on the headphones.
Firmly & gently click the + or the - button to adjust volume. You'll hear a "Beep" sound once the volume has reached MAX / MIN.
This feature is especially useful when the transmitter is connected to TV via Optical connection; this would be the only effective way to adjust volume since the TV's built-in volume control usually doesn't work under optical mode.
However, please note that the volume control buttons on the headphones ONLY works under Bluetooth Mode (i.e. when the headphoneis Bluetooth paired with another device.) The volume control buttons do NOT work when the headphones are being used under wired mode.
If still no luck, please contact us at support@avantree.com.