Measy AV220 2.4GHz Wireless Audio Video Transmitter and Receiver, Distance: 200m AV220 is Wireless AudioVideo Transmitter and Receiver. It consists of a transmitter and a receiver, Adopting advanced 2.4GHz wireless transmission technology, it can transmit the signal from any AV devices at transmitter to TV sets connecting receiver in different room. DVD, DVR, CCTV camera, IPTV, Satellite receiver, Digital TV Set Top Box etc. Feature: 1. 2.4GHz ISM frequency band. 2. 660 feet transmission range without any holdback. 3. 8 groups of selectable channels. 4. Patented Wireless technology. avoiding the interference from other wireless device. 5. A display screen indicate the selected channel. 6. Support 1 group of AV signal input output. 7. Support 1 transmitter and more than one receivers at the same time, when keeping Transmitter and receiver setting at the same channel. 8. Support any AV output devices, VCD, DVD, IPTV, DVR, Satellite receiver, CCTV Camera Digital STB etc. 9. Support PAL NTSC system and stereo audio transmission 10. Without installing any software，without any setting, plug and play Specifications: Type: Wireless. Frequency band: 2.4GHz System: PAL NTSC Interface: RCA (AV) Transmission distance: <= 200m Sensitivity: -90dBm Transmission power: 50mW Power input: 5V 1000mA Product size: 100x100x25mm Packing list: Transmitter x 1 Receiver x 1 Power adapter x 2 AV cable x 2 User manual x 1