1. RF/ UHF wireless stereo headphone system with 864MHz/ 915MHz ISM Band.
2. 2 channels for 2 audio sources CHA & CHB selection.
3. Double PLL system for ultimate frequency stability.
4. Built-in monitor function (you can silence the music from headphone to listen outside).
5. Audio input jack for MP3, iPod (use as wired headphone).
6. Operation distance up to 80 meters omnidirectional 360°.
7. Comfortable wearing with soft leatherette headband.
8. Auto mute function available for headphone.
9. Auto power on/ off function available for transmitter.
1. Built-in 40mm mylar speaker. 2. Power supply of transmitter: DC 12V 150mA. 3. Power supply of headphone: requires 2 AAA batteries.