2.4G Wireless AV Sender 350m transmission range 6 Selectable channels ... select these channels to avoid interference from signals of a wireless router, etc.4. Compatible with DVD, DVR, CCD ... flamboyant, and the sound is clear.6. Supports video transmission of PAL/NTSC system and stereo audio transmission. ... (L) ×8.5cm (W) ×3.0cm (H). 2.4GHz wireless long distance audio & video transmitter, Model:PAT-360