Self-powered wireless switch: no cables, no batteries, easy installation, environmental protection and no pollution. Safe and waterproof, it can be installed directly in the bathroom, used with wet hands, and can also remotely control lamps and heaters, no need to worry about electric shock, rust or moisture, etc. Quickly change the position of the switch, create a switch anywhere, such as a remote control, remote control table lamp, etc., very convenient, compatible with any light bulb, such as CFL halogen lamp LED incandescent lamp. 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 receiver distance first. Included in the box: 2 x VIVIS wireless switches, 1 x VIVIS receiver, double-sided tape, 2 x screws, 1 x product manual.