1. Wireless Remote Control: Control your electrical applications with the wall transmitter within the required range; The round self-powered RF and WiFi receiver is designed for much more compatibility as a mini module size for any UK/EU/US cable box. 2. No Battery to Control: With the self-generation function of the wall remote control switch, you can remotely control devices connected to RF433 or Wifi relay receivers without battery as long as the switch fits the prepaid receiver. The toggle switch also provides much convenience for your smart life. 3. Multifunction Switch: One wall mounted remote transmitter switch can control multiple RF433/WiFi relay receivers, and multiple wall mounted remote transmitter switches can also control one RF relay receiver at the same time. Stick the switch with the included double-sided tape. 4. Various Usage Ways: Use the RF receiver directly on your light bulb by wiring it and then control it with the transmitter controller. Or just hide the