1-15PCS SONOFF S-MATE2 MINIR4 Smart Switch eWeLink-Remote Control Smart Home Extreme Switch Work With Alexa Google Home IFTTT S-MATE extreme switch mate can connect the ordinary 1/2/3-button wall switch which acts as a remote controller. S-MATE extreme switch mate is battery-powered, so it does not require a neutral wire in the mounting box.SONOFF S-MATE extreme switch mate is an eWeLink-Remote sub-device. SONOFF S-MATE extreme switch mate can locally control the devices through the eWeLink Remote signal after connecting with the eWeLink Remote gateway device (such as MINIR4, DUALR3/DUALR3 Lite, M5, NSPanel Pro) and setting a local scene. S-MATE2 also controls any other SONOFF smart device in the smart scene when there is a network connection. It is "eWeLink-Remote" Control, click to learn more.Compared with S-MATE, S-MATE2 size is smaller, the battery life is longer(5 years), and double-click and long press are available when S-MATE2 is connected to a push button switch. A Great Solution For Your Smart Life Use S-Mate2 with MINIR4 or other smart switch with the gateway function of eWeLink-Remote, it can achieve relaibale 50M eWeLink-Remote local control. Enjoy Your Brand New Day One-click to start a day through the smart scene your set. Mechanical Switch Type Supported Customize your switch for a click, double-click, or long press.