FRITZ!DECT 400 - Technical specifications

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Highlights at a glance

  • Button for convenient operation of FRITZ! Smart Home devices
  • Switches FRITZ! Smart Home actuators and groups wirelessly (for example, you can turn lights on/off)
  • Ideal with the FRITZ!DECT 200 and FRITZ!DECT 210
  • Flexible - portable or can be mounted with a wall bracket
  • Easy to set up with your FRITZ!Box
  • Automatic updates with new features
  • Optimized for use with all FRITZ!Box models with FRITZ!OS 7.01 or higher

Technical specifications


  • A smart addition to your high-tech home
  • Manage and switch multiple FRITZ!DECT 200 and/or FRITZ!DECT 210 devices
  • Uses the DECT ULE wireless communication standard to connect to other devices
  • Acoustic feedback as confirmation of registration
  • LED response indicator confirms when button has been pressed



Package contents

  • FRITZ!DECT 400
  • Quick guide
  • Wall mount
  • 2 x adhesive strips
  • Battery (CR123A)

Device properties

  • Dimensions (W x H x D): 52 x 52 x 24 mm
  • Weight: 51g (antennae included)
  • Batteries: 1 x CR123A / 3V
  • Wireless standard: DECT
  • Wireless range: up to 40 meters indoors
  • Ready for use at an ambient temperature of 0°C to 40°C


  • You can mount the FRITZ!DECT 400 with the adhesive strips supplied
  • You can also place the button wherever you want, without fixing it

    System Requirements

    • A FRITZ!Box with an integrated DECT base station (except FRITZ!Box 7312/7412)
    • FRITZ!OS 7.01 and higher

    Article number

    • 20002864

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