The 2.4GHz wireless Unisar DH900 TV amplifier listening system with under-the-chin stethoset-style headset receiver is designed to wirelessly enhance sound from your TV and other audio sources. The TV amplifier's headset receiver features a mute button that turns off sound from the DH900 transmitter and turns on the built-in microphone for amplifying conversations around you.
Features:
2.4GHz wireless RF (radio frequency) digital technology (mono or stereo)
Headset mute button turns off sound from transmitter and turns on built-in mic for amplifying conversations around you