Tuya Smart WiFi Switch RF 433MHz Wireless Remote Control Smart Life APP Works With Alexa Google Home Alice For LED Lighting

Note:The relay controller is wifi+rf,the wall switch is rf only.Wall switch itself cannot control lights on off.It needs to work with wifi+rf receiver together.Wifi+ RF controller (Receiver)Input power : AC 85-240VRF Frequency : 433MHzWIFI Frequency : 2.4GHzWiFi Standard : IEEE 802.11 b/g/nSize : 414120 (mm)Max Current : 16AShell : YesPort : L/NCertification : CCC,CE,RoHSFeature : Has WiFi FunctionFeature2 : Can Work with Tuya,Smart HomeFeature3 : Time FunctionFeature4 : Voice Control by Google Home, AlexaWireless Wall Switchworking frequency:433MHZPower consumption in standby mode:Transmitter power: Working way: wireless controlCoding way: EV1527 learning codeModulation: ASKWorking temperature:-10"C~+70CSize: 8686* 15mmHow to get the signal?Step 1: Press the learning button(on the Receiver) twice. Wait for 3 seconds;Step 2: Press one button on the remote control. Wait for 3 seconds. Succeed.How to clear the signal?Only one step :Press the learning button(on the Receiver) 8 times. Wait for 3 seconds;