... distance:2k-3k 5.Low price 2.4G TV transmitter*4 channels available ... frequency range: 2314-2468MHz*Suitable for any camera and any digital video ... recorder*Easy play on TV or PC computer*Size: 88mm*65mm*25mm ... factory ) , it could charge laptop , camcorder, mobile phone, iPOD, iPhone, PSP, PMP, MP3, ... MP4,DVR, portable DVD, pocket mini projector, PDA, walkie talkie, Illumination lighting, karaoke ...