... , easy to install. Control Lights, TVs, Motors, Fans, Cameras, Video signals, Audio signals, electrically operated Doors/ Locks/ Windows/ Blinds/ Cars ... 28V. You can turn on/off the receiver with transmitter (remote control) from any place within a reliable distance; the ... / each channel Transmitter:Model No.: C-4 Channel: 4 CH Remote Control Distance: 100m / 300ft (theoretically)Encode: Fixed code by ...