Remote Control Receiver Specification: Model Number: KR2201W-4. Input Voltage: AC 90-250V. Max Current: 10A. Wireless Type: Wifi 2.4 G Hz. Wireless standard: IEEE 802. 11 b/g/n. Remote ON/OFF: Turn electrical devices on/off from anywhere. App Support: Free i OS & Android mobile App " Smart Life". Sync Status: Real-time device status provided to App. Timing: Set scheduled/countdown/loop timers to turn on/off at specified time. Share Control: Control your smart home together with your family. Scene: Turn on/off a gang of devices with one tap. Voice Control: Works perfectly with Amazon Alexa, Google Home, IFTTT. How to match smart switch with 433 Mhz RF remote control? This Smart Switch only can link WIFI Then can match RF 433 Mhz Remote Control. This smart switch has 3 working modes to match the 433 Mhz RF remote: (smart switch, hereinafter referred to as: receiver) About receiver's Working Mode: Momentary mode: Press the Remote control button, the receiver's relay is ON; release button, the receiver's relay is OFF. Toggle mode: Press Remote control button for 1 time, the receiver's relay is ON; press button again, the receiver's relay is OFF. Latched mode: Press Remote control button A, the receiver's relay is ON, Press the transmitter's button B, the receiver's relay is OFF. Reset function: After push the receiver's learning button 8 times, the receiver Clear all the remote control data in its memory. When the red LED flashes for a few times, it indicates that the clear function is completed. (After clear