2.4G Wireless AV Sender 500m transmission range 6 Selectable channels ... avoid interference from signals of a wireless router, etc.4. Compatible with DVD, DVR, CCD camera, IPTV, satellite STB, digital TV ... vivid and stable, the color is flamboyant, and the sound is clear.6. Supports video transmission of PAL/NTSC system ... (L) ×8.5cm (W) ×3.0cm (H). 2.4G wireless audio & video transmitter, Model:PAT-370