1. Wireless listening convenient for PC/VCR/VCD/DVD or audio system.
2. Operation distance up to 15meters with high carrier frequency infrared wireless technology.
3. Auto mute function when no singal for headphones.with built-in 10mm mylar speaker.
4. Dynamic LED display on transmitter to indicate input audio range.
5. Active noise reduction system for crystal clear sound.
6. Several headphones can be used simultaneously with on transmitter.
1. System: infrared light (850 nm). 2. Carrier frequency: (1) Left channel: 2.3 MHz. (2) Right channel: 2.8 MHZ. 3. Model: stereo. 4. S/N rate: > 75dB. 5. Channle speration: > 50dB. 6. Distortion: < 1%. 7. Frequency response: 30 - 20000Hz. 8. Transmitter power supply: DC12V. 150mA. 9. Headphones power supply: 2 x AAA ( recharge battery is optional).