... applicable to vehicle Power Supply:DC2.2V~3.3V Receiving Distance:over 6m Infrared Wireless Stereo Headset (1CH), applicable to vehicle1,Power ... Supply:DC2.2V~3.3V2,Working Current:25mA±5mA3,Receiving Frequency ... Audio Mode: Stereo12,With TV, CD, VCD, DVD, Mp4, computer and other built-in infrared audio modules are compatible with