1. Wireless Remote Control: Control your electrical applications 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 each UK/EU/US cable box for much more compatibility. 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 matches the prepaid receiver . The toggle switch also allows much convenience for your smart life. 3. Multi-function 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. Glue the switch in place with the double-sided tape provided. 4. Various uses: use the RF receiver directly on your bulb by wiring then controlling with the transmitter controller; or simply hide the receiver in the set-top box behind the traditional switch for easy control with our WiFi/RF controller or your traditional switch. 5. Attention: RF433 relay receiver and wall panel remote transmitter switch 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia