Smart switching

The FRITZ!DECT 400 works well with the smart plugs in your home, making using and operating them easier than ever before. For example, you can turn off the light in the living room from your couch. You don't even have to get up! Individual and group switching are both possible.

Integrated in the home network via DECT

The button is integrated into your home network via the Digital Enhanced Cordless Telecommunications (DECT) standard. Configuring the various functions in your FRITZ!Box user interface is quick and easy.

Discreet and compact

The FRITZ!DECT 400 has a compact, lightweight design. The smart button can be fixed to a wall or used as a portable unit anywhere in your home.

Learns through automatic updates

Thanks to the automatic update function, the smart button is capable of learning and new features can be added.

Ideal in combination with

FRITZ!Box with DECT functionality

The FRITZ!Box models with DECT make an ideal base station for your FRITZ!Fon. In combination with a FRITZ!Box, you can enjoy an incredible range of features on your FRITZ!Fon.



The FRITZ!DECT 210 and FRITZ!DECT 200 smart plugs are ideal in combination with the FRITZ!DECT 400. Turn multiple smart plugs on and off individually or in groups at the touch of a button.



The practical FRITZ!Apps add new functions to your FRITZ! products, as well as to your smartphones and tablets. Simply download the apps free of charge for iOS and Android.