AV230 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, supports 8 groups of channel selection 2. Unobstructed transmission distance up to 300 meters, including wall-penetrating capability. 3. Digital display for easy and intuitive channel selection. 4. Exclusive patented wireless anti-interference technology effectively blocks interference from wireless signals such as intercoms and wireless routers. 5. Supports PALNTSC audio and video transmission. 6. The transmitter supports one RCA audio and video input, and the receiver supports one RCA audio and video output. 7. When using the same channel, the transmitter and receiver can operate one-to-one or simultaneously with multiple receivers. 8. All-hardware design requires no software installation or configuration, making installation simple and plug-and-play. Specifications: 1. Type: Wireless 2. Frequency band: 2.4GHz 3. System: PAL NTSC 4. Interface: RCA (AV) 5. Transmission distance: