... wireless av sender 250m transmission distance IR Remote Extender 4 Selectable channels CE &RoHs Certificate ... of a wireless router, etc.4. Compatible with DVD, DVR, CCD camera, IPTV, satellite STB ... devices.5. Superheterodyne 433MHz Wireless IR Remote Extender is fully compatible with remote control signals of DVD, DVR, CCD ... .4G Wireless AV Transmitter and Receiver with IR Remote Control Model:PAT-240