The sound activated on/off switch. With clap detection lights. 2 Claps turn on the lamp. 3 Claps turn on the TV. The Clapper can control one or two appliances at the same time. Set the dial to Home or Away. Connect your appliance(s) into The Clapper. Plug The Clapper into any standard wall outlet. Features: Microphone. 2 Clap Outlet - Appliance connected to this outlet will be activated by 2 claps. 3 Clap Outlet - Appliance connected to this outlet will be activated by 3 claps. Indicator Lights - Indicator lights glow when a connected appliance is clapped off. Special Features: Clap Detection Lights - Lights glow in sequence when proper claps are detected. Sound Sensitivity Dial - Adjusts for softer or louder claps. UL Listed. Mfg in China.