The Sonoff MINIR4M, also known as the MINI Extreme, is a compact smart switch designed to bring automation to your existing home lighting and appliances. By utilizing the Matter over Wi-Fi protocol via a 2.4 GHz connection, it integrates seamlessly with ecosystems like Apple Home, Amazon Alexa, Google Home, and SmartThings, allowing you to manage your devices through voice commands or a mobile app. Housed in a white, fire-retardant PC shell measuring 39.5 x 33 x 16.8 mm, this module is small enough to fit into standard EU, 86-type, and 120-type mounting boxes. It supports a wide input voltage range from 100-240V with a maximum load current of 10A, and requires a neutral wire for installation. For added safety, the ESP32-powered device includes built-in protection against overheating and overcurrent. This switch is versatile enough to work with various external controls, including momentary, latching, door exit switches, dry contact sensors, and SPDT two-way switches. This makes it a practical choice for homeowners who want to modernize their electrical system without replacing their existing wall switches.