Shelly BLU Wall Switch 4 ZB DK White

The Shelly BLU Wall Switch 4 ZB DK is a battery-powered wireless wall switch with four buttons, communicating via Bluetooth Low Energy 5 and Zigbee 3.0. The device is specifically designed for the Danish switch frame format and fits perfectly into standard Danish flush-mounted frames – alternatively, it can also be mounted freestanding with the included adhesive tape. Each of the four buttons supports single, double, triple, and long press, allowing for up to 16 independent actions or scenes to be defined per button.
For use with the Shelly Smart Control App, a Shelly Plus/Pro device can optionally serve as a Bluetooth gateway. The remote control is broadly compatible and works seamlessly with Shelly Pro, Plus, Gen3, and Gen4 devices, as well as directly with Home Assistant and other BTHome-enabled systems. With its long battery life and versatile applications, this remote control brings more comfort and flexibility to your smart home without needing to reach for your smartphone.

Recommended Accessories:

Shelly BLU Gateway USB Dongle or Shelly with BLU Gateway Function (from GEN3)

Features:

Dual-protocol Bluetooth LE 5 and Zigbee 3.0 for flexible integration into Shelly ecosystems and third-party Zigbee platforms like Home Assistant
Four buttons each with four action types (single, double, triple, and long press) for a total of up to 16 configurable actions or scenes
Perfect fit for Danish flush-mounted frames (DK standard, 63 × 63 mm) – frame removable for integration into existing switch programs, alternatively mounting with adhesive tape
CR2032 battery with up to two years runtime; no wiring required for retrofit and flexible installation
AES encrypted communication on both protocols (BLE and Zigbee 3.0) via EFR32MG27 microprocessor
Beacon mode available: device sends Bluetooth beacons for proximity-based automations without button press

Application Examples:

Lighting control retrofit without electrical installation – single press on/off, long press dim, double press activate scene
Open and close smart blinds or shutters without additional wiring in the Danish flush-mounted frame
Control four different rooms or device zones with a single 4-button switch – each button assigned to a room
Beacon mode for presence-based automations: turn on lights once you approach the switch
Open and close the garage door with encrypted Bluetooth command without smartphones or apps

Documentation:

Shelly Knowledge Base – BLU Wall Switch 4 ZB DK

Technical Specifications:

Manufacturer: Shelly
Manufacturer SKU: Shelly_B_WS_4_ZB_DK_w
EAN: 3800238073404
Color: White (Ivory)
Buttons: 4 (single, double, triple, long press; up to 16 actions)
Bluetooth: BLE 5, 2402–2480 MHz, max. 8 dBm, up to 10 m indoors / 30 m outdoors
Zigbee: 3.0 / 802.15.4, 2405–2480 MHz, max. 8 dBm, up to 10 m indoors / 30 m outdoors
Microprocessor: Silicon Labs EFR32MG27
Flash: 768 kB
Encryption: AES (BLE + Zigbee)
Power Supply: 1× CR2032 (3 V, included)
Battery Life: Up to 2 years
Gateway required (BLE): Shelly Plus / Gen3 / Gen4 or Shelly BLU Gateway
Gateway required (Zigbee): Zigbee Coordinator (e.g., SkyConnect, ZHA, Zigbee2MQTT)
Installation: Danish flush-mounted frame (DK standard) or surface-mounted with adhesive tape
Operating Temperature: -20–40 °C
Humidity: 30–70 % r.H.
Product Dimensions: 63 × 63 × 11 mm
Product Weight: 27 g
Packaging Dimensions: 86 x 67 x 22 mm
Gross Weight: 42 g