RF Link AVS-5812 Wireless Audio/Video Sender (5.8 GHz) Advanced 5.8 GHz technology avoid interference from any 900 MHz or 2.4 GHz application Wirelessly transmit vivid video and hi-fi stereo sound from cable set-top box etc. to any TV, monitor or projector 4 user selectable channels Less crowded 5.8 GHz band application: package includes sender Only 5.8 GHz wireless transmitter with 4 selectable channels Transmits crisp video and hi-fi stereo even through walls Long transmission range up to 400 feet clear line-of-sight Simultaneous viewing of video programs on a 2nd TV or monitor without wires