Connect the In-Wall Transformer (25x35x20 mm) to the Netatmo Video Doorbell and connect it to the existing electrical wires hidden in the wall. To make it even simpler, there's no need to install a chime.
Requires electrical know-how.
The Netatmo Video Doorbell rings on the smartphone and, if you want, on a compatible smart speaker. The Transformer is specifically designed for the Netatmo Video Doorbell.