SONOFF MINI R3 16A Wifi Smart Switch With S-MATE Ewelink Control No Neutral Wire Solution Works With Alexa Google Home Assistant Have you ever met these similar situations when you consider a simpler way to set up and control your smart home? Smart lights are offline when the switch is off? No neutral wire in the mounting box? Now, S-MATE can help you solve this issue.MINI R3 is a small body with powerful functions, the maximum load current can be up to 16A that making it a powerful solution to smarten your appliances. MINI R3 is compatible with Alexa, Google Assistant, Siri shortcut, and Alice. Just say your needs out, the smart device can do what you want to do. With the sync status on eWeLink App, your worry about leaving the appliances on at home is no longer a concern. Just pull out your phone and tap on it.S-MATE is battery-powered, so it does not require a neutral wire in the mounting box. S-MATE is fit for almost any switch type, change your existing switch into a smart one. S-MATE can connect the ordinary 1/2/3-button wall switch which acts as a remote controller. After pairing with MINI R3, MINI R3 can be controlled locally by S-MATE through "eWeLink-Remote" signal, and trigger other smart devices in the smart scene. "eWeLink Remote" working distance is Up to 50M in open space.MINI R3 and S-MATE have been tested for safety and comply with the requirement of international regulations, as TV certified and FCC&CE certification ensures high trust, quality, and safety. Note: 1.Please upgrade the eWeLink APP to 4.18(latest version) to use, also the latest version of the firmware.2.S-mate cannot be used alone, it needs to be used with MINIR3. Have You Ever Met These Problems?