MINIR4M is SONOFF's first Matter device, it can recognize and work with other brands of Matter end devices, and integrate into Matter-enabled platforms, such as Apple Home, Google Home, Alexa, etc. Controlling all smart devices through one app is no longer a fantasy. Matter-certified devices support local communication in the home network, even if the network is disconnected, MINIR4M still works normally, with faster responsiveness and better reliability. Adding MINIR4M to Matter-compatible Apps is easy. Simply scan the provided Matter QR code with your Matter-Compatible App and MINIR4M is easily configured by following the steps of the App. MINIR4M is equipped with an ESP32 chip, its tiny size fits in various mounting boxes, including 86/EU type, 120 type mounting box. MINIR4M supports external switch control and easily connects to the momentary switch, door exit switch, SPDT switch, latching switch, and even dry contact sensors. MINIR4M has "detach relay" mode, which means the states of external switches and relay are separated, so operating the external switch button won't affect the relay state. Such as, if you open detach relay" mode, when you turn off the light, your smart light won't be offline, and you still can use the App to control smart lights.