1. Wireless Remote Control: Control your electrical appliances with the wall transmitter within the required range; The round RF and Wifi receiver with its own power supply is designed as a mini module size for every UK/EU/US wiring box for much more compatibility. 2. No Battery to Control: With the self-generating function of the wall remote control switch, you can remotely control the devices connected to the RF433 or Wifi relay receivers without a battery as long as the switch matches the receiver in advance. The rocker switch also provides a lot of convenience for your smart life. 3. Multifunction Switch: One wall remote control transmitter can control multiple RF433/WiFi relay receivers, and multiple wall remote control transmitters can also control one RF relay receiver at the same time. Attach the switch in place with the included double-sided tape. 4. Various Uses: Use the RF receiver directly on your light bulb by plugging it in and then controlling it with the transmitter control; or simply hide the receiver in the decoder behind the traditional switch for easy control with our WiFi/RF controller or your traditional switch. 5. Please note: The RF433 relay receiver and wall panel remote control transmitter must be used with the same type, so you cannot buy a receiver or switch alone, or use the self-generating wall panel transmitter to connect to another type of receiver. (1 receiver with 2 transmitters)