... TV,DVD,IPTV,etc Function and Features:1. Use 2.4GHz ISM frequency band.2. 150m transmission range.3. Support 4 groups of ... avoid interference from signals of a wireless router, etc.4. Compatible with DVD, DVR, CCD camera, IPTV, satellite STB, digital TV STB ... . Dimensions: 10cm (L) ×8.5cm (W) ×3.0cm (H). 2.4GHz wireless audio transmitter, Model:PAT-330,150M transmission distance,CE tested,Best price ...