2.4G Wireless A/V Transmitter & Receiver /Wireless IR Remote Extender(150m ). Function and Features: Use 2.4GHz ISM frequency band. Support 4 ... waves and can be used for wireless sharing of AV signals of DVD, DVR, CCD camera, IPTV, satellite STB, digital TV ... . Wireless AV transmission solutions are suitable for large video meeting systems and multimedia class rooms.2. With an external CCD camera, ...