CASAcontrol
Battery-free wireless doorbell with socket receiver, 36 tones, IP44

ready for use anywhere in the blink of an eye: The kinetic bell pushbutton requires neither batteries nor cables. It uses the energy that is generated when it is pressed. So you simply place it wherever you need it. And you plug the receiver into the socket in the room where you are. That's it!

Sound signal according to your wishes: choose from 36 ringing signals from traditional to musical classics. Set your preferred volume with up to extra loud 95 dB. You'll always be optimally notified. Also ideal for people with hearing problems.