1. Wireless Remote Control: Control your electrical appliances with the wall transmitter within the required range; the round RF and Wi-Fi receiver with its own power supply is designed as a mini module for any UK/EU/US cable box for greater compatibility. 2. No Battery for Control: With the self-generating function of the wall remote control switch, you can remotely control devices connected to RF433 receivers or Wi-Fi relays without a battery, as long as the switch matches the prepaid receiver. The rocker switch also offers great convenience for your smart life. 3. Multi-Function Switch: One remote wall transmitter switch can control multiple RF433/Wi-Fi relay receivers, and multiple remote wall transmitter switches can also control one RF relay receiver simultaneously. Secure the switch in place with the included double-sided tape. 4. Various Uses: Use the RF receiver directly on your light bulb by wiring it and then controlling it with the transmitter controller; Or simply hide