红外线无线耳机

Wireless Infrared Headphone Features: 1) Infrared wavelength: 850nm 2) Carrier frequency: R-ch 2.8MHz / L-ch 2.3MHz 3) Effective length: 10m (straight) 4) Speaker: 40mm mylar cone 5) Impedance: 32 ohms 6) Frequency response: 20 - 20,000Hz 7) Modulation: ± 75kHz 8) Distortion: below 1% 9) S/N ratio: ≥55dB 10) Power supply: a) Transmitter: DC 12V / 200mA b) Headphone: DC 3V (AAA x 2) 11) Auto mute function 12) Auto power off when no signal 13) Ultra lightweight design 14) With high quality ear cushions 15) With volume control and power on / off on headphone 16) One transmitter can be used with two or more headphones simultaneously