SONOFF WiFi / ZigBee Smart Switch MINI R2 / MINI R3 / ZBMINI / ZBMINI-L / Via Ewelink App Voice Control Alexa Google Home Alice This is a mini and compact DIY smart switch used for different kinds of switch boxes, even the smallest EU standard switch box. Convenient to automate your home appliances with eWeLink app through your smartphone or tablet or your voice command. Support to connect an external rocker light switch unable to automatically spring back for easily managing connected devices in your home, both on your phone or directly from the wall. It supports the DIY mode (designed for developers) which allows users to integrate MINI into worldwide third-party open source smart home control system to achieve LAN control without cloud service, such as Home Assistant, openHAB, ioBroker .etc.Note: 1.The antenna has strong electricity inside, do not break the wire jacket. 2.To make sure the stable RF signal, please keep the wire away from the metal component in the switch box when wiring. More Options in External Switches Falling edge triggers the relay to reverse in level jumping. Ideal for the push button switch which is triggered once after being pressed and automatically bounced back Safety, Improved Further The external antenna of MINIR2 is moved to the interior, improving the use performance and safety. Considerate Design for Your Safety The S1 and S2 interface is highlighted on the different color to give you a clear tip that they can not connect the strong current for security reasons.