Self-powered wireless switch: no cable, no battery, easy installation, environmental protection and no pollution. Safe and waterproof, can be installed directly in the bathroom, can also be used with wet hands Remotely control lamps and heaters, no fear of electric shock, no fear of rust or moisture on the battery, etc. Quickly change the switch position, create a switch anywhere, such as a remote control or remote control table lamp, etc., very convenient, compatible with any light bulb, such as halogen/incandescent/CFL/fluorescent/LED. The maximum distance of the wireless remote control is 150 meters, but walls and obstacles will affect the distance. Before installation, we recommend testing the distance of the receiver first. What you will find in the box: 2 x wireless switches, 1 x receiver.