1. Dynamic display of audio level for transmitter.
2. Three selectable frequencies for transmitter.
3. The headphone can be used as a Hi-fi stereo wired headphone.
4. Talk on internet with built-in microphone on the transmitter.
5. No interference between two transmitters because the transmitting frequency is adjustable.
6. Automatic power on/off for transmitter.
7. Automatic mute function for headphone.
8. Several headphones can be used simultaneously.
Operation distance: >50 meters.
China
