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The WiFi+RF version can learn up to 14pcs 433MHz codes/gang (Not support Encrypted code and Rolling code). Press and hold each manual switch for 3s to pair with 433MHz remote controller and press for 15s to clear the RF codes. Radio Frequency: 433mhz Code Type: Fixed code / Learning code It can learn up to 14PCS different codes Max range is up to 98ft/30m Package content: 1 x WiFi relay module, 1 x remote control (433 MHz), 1 x user manual This product is a wireless switch supports momentary(inching) /self-locking work modes. Users can add the device to the APP eWeLink in order to remotely control connected home appliances or power circuits. Note:The relays are switches without output, the power supply input (AC/DC) just for the PCBA. Tap the work mode setting button manually, the product can change the working mode. When in inching mode, you can have two wiring ways to select: -Turn on 1s and then auto-off -Turn off 1s and then auto-on. When in self-locking mode, you can remotely turn on/off connected devices immediately. When in interlock mode(only 2-gang and 4-gang supports), you can remote control AC/DC motors. The product enables remote control of home appliances through the mobile application eWeLink, available on both Android and iOS. Supported functions include: *Remote turn on/off *Timing Schedules *Device Sharing *Group Management *Compatible with Amazon Echo, Echo Dot, Amazon Tap *Works with Google Home, Google Nest *Works with IFTTT This product is compatible with Amazon Alexa. You can ask Alexa to control the device through voice commands. Please note that only US/UK English and German voice commands are supported now. How to works with IFTTT: Search “eWeLink Smart Home” in IFTTT APP