The Shelly BLU RC Button 4 can be mounted on any magnetic surface thanks to its integrated magnets and 2 x included magnetic holders, or it's compact enough to fit in your pocket as a wireless and portable handheld smart automation controller. Each of the buttons supports multi-click, meaning single, double, triple and long-press clicks on each button can be programmed as separate actions for a total of 16 possible actions; anything from a single electrical appliance, to full lighting circuits, to synchronised scenes involving multiple linked Shelly devices can be controlled easily from a single button press. The BLU RC Button 4 is Bluetooth operated, meaning both a quicker response time (less than 100ms) and a significantly lower battery usage profile than a WiFi-operated controller with up to two years of battery life on a single battery. Also included is a suite of quality-of-life features such as a beacon mode to find the RC Button 4 if lost, and full native out-of-the-box compatibility with all home assistants supported by BTHome protocol.