【What is it for?】Compact and durable wireless switch.We can use it to replace traditional pull chain switches or wall switches;add it to existing switches without affecting the existing system;move light switch for stair, garage, attic, basement;establish a wiring system for the new house. 【100m Wireless Transmission Range】Strong RF signal works through walls and doors without any interference.Indoors 100m and outdoors 500m, you can use the switches in any room to remotely control the lights that have been paired. 【Wall Switch and Portable Switch】 Unlike a traditional switch that needs to be hardwired, this switch can be mounted almost anywhere in a screw-on or self-adhesive manner, it can also work as a portable switch to put on anydesk.The compact receiver can be easily installed in the space of an electrical junction box, switch box or canopy. 【Programmable & Expandable】More than the kit listed separately, an additional switch panel and receiver are available in our store.You can customize the suit according to your actual damand.After wiring the receiver, press the diamond key until it flashes, then click the switch, they will be paired. 【Great for】Works with all kinds of LEDs, lights, lamps, bulbs, fans and other electrical devices.Suitable for indoor and outdoor installation, such as living room, bedroom, dining room, bathroom, kitchen, garage, yard, attic, basement, etc.