Detailed Product Description Features: 1) Transmit signals by 2.4GHz frequency band 2) 4 channels available to avoid possible interference 3) Receiver adopts the infrared remote control by 433.92MHz 4) Can output Audio and Video signals synchronously 5) Open Transmission distance100 meters 6) Easy installation and usage 7) Frequency points for the 4 channel is 2,414MHz, 2,432MHz, 2,450MHz, 2,468MHz (can be designed for customers especially in range of 2,400MHz to 2483 MHz) 8) Solutions: these products are cabinet, diaphanous and convenient to take and use. This series of products can be used for home entertainment, and can transmit AV signals from PCs, DVDs, TVs, set-top Boxes, and DVs. These devices also can be connected to TVs, LCDs, VCRs, projectors, headphones, speakers and music centers 9) Caution: these products must be forbidden for illegal use