The Shelly Button Add-On Black is a compact, wireless function button for controlling smart home scenes, automations or devices. With Bluetooth Low Energy, the button can be conveniently connected via app and assigned in a variety of ways - perfect for operating lights, thermostats, shutters or other smart home functions without fixed wall operation. The Shelly Button Add-On Black is a versatile, wireless smart home button with Bluetooth Low Energy (BLE) for convenient control of a wide range of functions. It can be easily paired via an app and assigned actions, including switching devices on and off, triggering scenes or controlling automations. Thanks to its compact design and rechargeable battery, the Button can be used independently of a fixed installation - as a universal function button for light control, security alarms, time programmes or individual smart home commands. It is connected locally via BLE, so no additional bridge is required if a compatible gateway or smart app control is used. The button supports different click variants to differentiate between actions and can be assigned different functions depending on the app settings.