1、Supports 8 2.4GHz channel selections using the 2.4GHz ISM band. 2、Unobstructed transmission distance of up to 200 meters. Support through the wall transmission. 3、Digital screen display channel, channel selection is convenient and intuitive. 4、Exclusive wireless anti-interference patent technology, effectively blocking wireless signal interference such as walkie-talkie and wireless routing. 5、Support audio and video transmission of PAL/NTSC system. The AV220 is a set-top box wireless shared transmitter and receiver that enables long-distance wireless transmission of audio and video signals. The product consists of a Transmitter and a Receiver. It adopts advanced 2.4GHz high-frequency wireless transmission technology. It wirelessly transmit audio and video signals such as DVD, DVR, IPTV, surveillance camera, satellite receiver, digital TV set-top box, etc and receive it on the receiver and input to the television display. It has the characteristics of long transmission distance, strong anti-interference and easy to carry. Features: Supports 8 2.4GHz channel selections using the 2.4GHz ISM band. Unobstructed transmission distance of up to 200 meters. Support through the wall transmission. Digital screen display channel, channel selection is convenient and intuitive. Exclusive wireless anti-interference patent technology, effectively blocking wireless signal interference such as walkie-talkie and wireless routing. Support audio and video transmission of PAL/NTSC system. In the same channel, the transmitter and receiver can be used simultaneously for one-to-one or one transmitter to multiple receivers. Support 433MHz superheterodyne infrared remote control signal wireless backhaul, compatible with 38KHz infrared carrier remote control signal. The transmitter comes with infrared signal transmission or uses infrared signal extension cable. Aluminum alloy casing, super heat dissipation effect, effectively guarantee the working time and life of the equipment. Specifications: Brand: Measy Type: wireless Frequency band: 2.4GHz System: PAL / NTSC Interface: for RCA (AV) Infrared remote control: 38 KHz Transmission distance: ≤200 meters Package List: 1 * Transmitter 1 * Receiver 2 * Power Adapter 2 * Charging Cable 2 * Audio Connecting Cable 1 * User Manual 2 * Blocking piece