The Switch 55 Anthracite 1Way Rocker 2 Channel EnOcean Casambi is a wireless and battery-free wall switch powered by EnOcean energy harvesting and fully integrated with the Casambi Bluetooth mesh system, allowing control of lighting, groups, scenes and dimming functions without wiring or battery maintenance, while all configuration is done via the Casambi app and the switch can be freely placed using screw or adhesive mounting.