How to Adjust Volume on the HT280 Headphones

You may adjust the volume via the + and - buttons on the headphones.

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 do NOT work when the headphones are being used under wired mode. 

Firmly & gently click the + or the - button to adjust volume. You'll hear a "Beep" sound once the volume has reached MAX / MIN.

If still no luck, please contact us at support@avantree.com.