YET402WFR_V2.0 (two-way wireless intelligent receiving controller) is a dual-system controller integrating remote control and WIFI. It outputs switch signals compatible with two-way relays, which can control the compatible withward and reverse rotation of the motor; or the on and off conversion of the switch and various special control program requirements. Mainly used in electric doors, windows, lifting equipment, gates, lifts, industrial control and security industries. Supports WiFi intranet or extranet connection: can be used as a single product or network [multi-product] control. Supports a variety of remote controls on the market, including fixed codes (2262, 2260, 2264, 5326, M1E, M5E, etc.), learning codes (1527, 2240, 6P20B, 6P20D, etc.), rolling codes (HCS301, HCS300, HCS200, HCS201, HCS100, HCS101, etc.) Remote control learning: Press the learning button on the controller or click "Learning Channel" in the "Special Function Setting Interface" in the APP. Release the learning button after the LED light turns on. The controller enters the learning state, and then press the button of the remote control that needs to control the controller. When you see the LED light of the controller flash 5 times and then go out, it means that the learning has been successful. The remote control learned by learning button 1 on the controller corresponds to relay 1, and learning button 2 corresponds to relay 2. Remote control clearing code: Press and hold the "learning button" on the controller until the LED light turns off (time is more than 5S). Colour:Gray+Black Material:plastic Due to different product batches, the appearance may vary, which does not affect the use Package Contents: 1 x Garage Door Receiver 2 x Remote Control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.