Extra home security, never enter a dark home again. Turn lamps ON before entering home, even from inside your car. TURN LAMPS, TVs, and other APPLIANCES ON/OFF from Bedside, Room to Room, Upstairs. Or Garage. IDEAL FOR CHRISTMAS LIGHTS – remote control eliminates the need to plug and unplug. USEFUL FOR ELDERLY & HANDICAPPED – remote control transmitter fits easily in pocket, purse or glove compartment. Transmitter takes one 6 volt photo type battery (included). Additional remote receivers and remote controls can be used with each other.