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