Why choose wireless switch? No need to install batteries or connecting wires, GreenSun wireless switch tool is self-powered, which reduces the need to replace batteries and is safer, more convenient and more energy-saving. 5 wireless switches can be connected, allowing you to control the switches of your devices in five different places such as bedroom, stairs, bathroom, kitchen, balcony and basement. Our sockets can be turned on and off more than 200,000 times, assuming 4 interruptions per day, the service life of the switches can reach 137 years. The indoor control range is 50 meters and the signal from the switch can pass through 3 walls; when there are no walls to isolate the signal, the switch can control up to 200 meters. Our products come with bilingual instructions, which makes it easy for you to install them even if you don't know anything about electronics. We include wall stickers and screws, so if you don't want to break your wall, use the stickers to fix the switch to the