Xodus Innovations HW2172 Wireless Remote Light Control and Plug-In Receiver Outlet Switch for Lamps, Lights and Power Strips 50&#39; Range (Battery Included), White,Xodus Innovations,HW2172" /> Mountable wall switch that will remotely turn on/off lamps Plug the receiver into any 120V ac electrical outlet 50' range with 4 selectable channels Two 2-volt lithium batteries included Indoor use only