Sonoff Basic RFR2 WiFi Wireless Smart Switch With RF

【With 433MHz RF Control】Use your common 433MHz remote control to turn on/off the device without Internet.
【Easily DIY Your Smart Home Appliances】Connect RFR2 directly to the middle of the power supply and the appliance to quickly make your ordinary appliances smart without buying a new smart one.
【Fully Functional】RFR2 has all the most basic functions, like remote APP control, LAN control, timing schedule, share control, etc. Your best choice for the DIY switch.
【Smart Scenes】Trigger other smart devices, make actions auto-on/-off. The appliances understand you, and your life becomes simpler.
【Voice Control】Compatible with Amazon Alexa, Google Assistant, SmartThings, and Alice. Just speak out your command, the smart device can do on/off as you say.