Camecho 2W/2000mw 2.5G 4-CH 4 channel Wireless Video Audio AV Transmitter Receiver Sender PAL/NTSC for FPV CCTV camera kit Up to 800M The product consists of a transmitter and receiver. It adopts an advanced 2.5GHz wireless transmission scheme and has the advantages of a long transmission range(up to 800 meters), anti-interference and high mobility. Support 4 Channels. You can select these channels to avoid interference from signals of a wireless router, etc. The transmitter and the receiver are used in the same channel in a pair and can be used in the modes if point-to-multipoint or multipoint-to-multipoint.Adopts new circuit and new structure design that guarantee clear image and sound. It can transmit AV signals of DVD, DVR, CCD camera, IPTV, satellite set-top box, digital TV set-top box and other similar devices by means of radio waves and receive them at distant end and input them to a TV set to be displayed. It enables you to easily realize wireless sharing of HD AV data and enjoy untrammeled hi-fi audio/visual effects. Images received by means of radio are vivid and stable, the color is flamboyant, and the sound is clear. Supports video transmission of PAL/NTSC system and stereo audio transmission.Fully hardware-designed. There is no need to install software. Plug and play. Simple and convenient. Power: DC 9-12V/1A or DC 8-12V/1A.Video signal system: PAL/NTSC.Audio input impedance: 1KW. Video input impedance: 75W.