Smart Wi-Fi lighting key and 433 MHz frequency compatible with Alexa and Google Home

Note: The relay control unit is wifi + rf, and the wall switch is rf only. The wall switch itself cannot control turning off the lights. It needs to work with a wifi + rf receiver device together. WiFi + RF controller (receiver) Input power: AC 85-240V Wireless frequency: 433 MHz WiFi frequency: 2.4 GHz WiFi standard: IEEE 802.11 b/g/n Size: 41*41*20 (mm) Max current: 16A Shell: Aluminum Port: L/N Certification: CCC, CE, RoHS Feature: Has WiFi function Feature 2: Can work with Tuya, smart home Feature 3: Timer function Feature 4: Voice control via Google Home and Amazon Alexa Wireless wall switch Operating frequency: 433 MHz Power consumption in standby mode: <1uA Transmitter power: <10 milliwatts Working method: Wireless control Coding method: EV1527 learning code Adjustment: Ask Operating temperature: -10°C~+70°C Size: 86*86*15 millimeters How 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. Success. How to erase the signal? One step only: Press the learning button (on the receiver) 8 times. Wait for 3 seconds.