PRODUCT FEATURES Transmit signals by 2.4GHz frequency band. 4 channels available to avoid possible interference Receiver adopts the infrared remote control by 433.92MHz. Can output Audio and Video signals synchronously. Open Transmission distance100 meters. Easy installation and usage Frequency points for the 4 channel is 2414Mhz, 2432Mhz, 2450Mhz, 2468Mhz,But can design for customer especially in range of 2400 MHz to 2483 MHz. SOLUTIONSThe product is cabinet and diaphanous. It is convenient to take and use. It could be used for home entertainment,can transmit AV signals from PC,DVD,TV,Set-top Box,and DV etc.And can display by TV,LCD,VCR,PROJECTOR,or listened by Headphone ,Speaker and Music Center.Caution: This product must be forbidden for illegal use.