1.video transmitter receiver 2. 4channels available 3.Connect to camera or DVR 4.Long distance:2k-3k 5.Low price ... open place*Transmission frequency range: 2314-2468MHz*Suitable for any camera and any digital video recorder*Easy play on TV or ... phone, iPOD, iPhone, PSP, PMP, MP3, MP4,DVR, portable DVD, pocket mini projector, PDA, walkie talkie, Illumination lighting, karaoke player ,and ...