The Diamond V-Stream Wireless HDMI Sender/Receiver (VS300M) includes a transmitter unit and a receiver unit that provides wireless video transmission up to 150ft. (Clear Line of site, distance will vary when transmitting through walls). The VS300M supports anti-interference at 5GHz operation frequency. The VS300M can transmit from one sender to multiple receivers at the same time. (Max 2 Receivers, additional receiver sold separately). The VS300M supports a wide range IR frequencies: IR (20-60KHz) to remotely control your video sources from the receiver location. Selectable channel allows you to select receivers.