Shelly BLU Wall switch 4, stand alone - Bluetooth batteritryck

Shelly BLU Wall Switch 4 is a battery-operated Bluetooth button with four buttons, which is installed on the wall. The control button can be set up to control your lights, curtains, garage door, lighting scenes, or something completely different. It comes with a CR2032 battery with an expected lifespan of more than 5 years.