Self-powered wireless switch: no cables, no batteries, easy installation, environmentally friendly and pollution-free. Safe and waterproof, can be installed directly in the bathroom, can be used with wet hands, and can also remotely control lamps and heaters without worrying about electric shock, no need to worry about batteries rusting or moisture, etc. Quickly change the position of the switch to make the switch anywhere, such as remote control, remote control table lamp, etc., very convenient, compatible with any bulb, such as halogen lamp or incandescent lamp or CFL or fluorescent lamp or LED. The maximum distance of wireless remote control is 150 meters, but the distance will be affected by walls and obstacles. Before installation, we recommend that you check the receiver distance first. In the box: 1 wireless switch, 1 receiver. becomerich