The Shelly BLU Wall Switch 4 ZB DK is a compact, battery-operated wireless switch that enables quick and reliable control of smart home devices via Bluetooth Low Energy (BLE) and Zigbee 3.0. With four programmable buttons and support for multiple actions, it offers a highly flexible user interface for automation scenarios. Ideal for flush mounting in Danish switch frames or as a standalone remote control, the device requires no wiring and integrates seamlessly with Shelly ecosystems and third-party Zigbee hubs. -Dual protocol: Communicates via Bluetooth LE and ZigBee 3.0, enabling flexible integration. -Powered by a CR2032 coin cell with a typical usage life of up to 2 years. -4 programmable buttons: Support single, double, triple and long press ? up to 16 unique actions -Fits into standard Danish wall switch frames -No wiring required: Can be attached anywhere with glue or screws. -Strong Encryption Common Usage Types -Light Control -Garage Door Opener -Smart Blinds or Curtains -Location Based Automation -Scene Control