TCL

Step 1: Set TV audio format to PCM.

• Go into your Menu, Select "SETTINGS" 
  
• Scroll down to "AUDIO"
  
  
  
• Select "S/PDIF and ARC"
  
  
  
• Change it to "PCM-STEREO"
  
  

Step 2: Reboot the Transmitter & the Headphone.

Turn both your Transmitter & your Headphone OFF, wait for a few seconds, and turn them back on again. Now you should be good to go.

If you prefer Learning through a Video:

Still doesn't work?

IF you've updated your TV audio settings as above and you've already paired your headphones to the transmitter YET there's still no sound coming out of your headphones, please give TCL Technical Support a call at:

Tel: 1-877-300-8837
Support:https://support.tcl.com/contact-us

Alternatively, you may contact us at support@avantree.com