With the help of the Maplin ORB RF V2 Remote Controlled Mains Plug Socket Set you can turn any appliance with a plug socket into a remotely controlled device. Controlling the sockets up to 30 metres, the remote uses radio frequencies so that it does not need to be pointed at the sockets and can work through walls! Each RF remote control has 12 channels, allowing you to control 1 or more individually or all at the same time. Package includes 3 remote sockets, remote control, 12V 23A battery for remote control Specification (Transmitter Remote Control) Controls up to 12 channels Frequency: 433.92MHz Transmission Range: Typically 30 M (open area) Battery: CR2032 Specification (Receiver) LED indicates power ON/OFF or code learning status 230V-50Hz Frequency: 433.92MHz Receive Range: Typically 30 M (open area) Max.3120W 55mm wide x 73mm High x 42mm depth without power tips