IR receiver and an IR transmitter. Place the IR receiver in the room in which you wish to use the remote control. Place the IR transmitter in sight of the equipment that you wish to operate. Point the remote control at the IR receiver in order to operate equipment through walls (wirelessly) via the IR transmitter.
The Balun King VT3 is an outdoor wireless video transmission system. It comes complete with a transmitter and receiver (both in mini housings) which operates withing free ISM 57253Hz-5875MHz band. This is designed for wireless audio and video signal transmission for CCTV and can operate with any CCTV camera or DVR, transmitting video signals for up to 3km.
The Balun PTZ wireless Controller is a professional telemetric module, allows wireless video & control of high speed cameras and DVRs with the distance of 3km. It provides single chanel video and two-way telemetry transmission (half duplex) required by most high speedcameras