【Super Design】433MHz RF wireless switch. No wiring required between the lamp and the switch. Performance is stable and reliable, and receiving sensitivity is high (>-97dBm). Radio frequency signal transmission. Strong signals can pass through walls, floors, doors, panels, etc., and can be controlled at a distance of 50 meters in an open space. 【Easy to Use】The wireless switch can be attached with double-sided tape or screws. You can turn the device on/off anywhere via the wireless switch. It is a standard 86-type wall switch. 【Easy to Install】It is installed between the power source and the device. It can be easily hidden in most electrical boxes or junction boxes, or it can be attached to a circuit board with screws. You can easily install it to control lights or outlets. No wiring required. 【Multi-person Control】Each receiver can store about 10 wireless switches. So you can share the switch with your family. You can remotely control the device corresponding to the receiver. And one transmitter can also control multiple receivers. For example, install one switch on the wall next to your bedroom door and another switch on your bedside table. 【High-Quality Switch】The wireless switch can be clicked more than 500,000 times. Requires a 12V 27A battery. And it can be used for about 5 years. Once the battery is removed, it can be replaced. 【More Flexible】Extremely easy to set up and reset. You can easily add additional wireless switches yourself as needed.