Der Hörknubbel®

Hörknubbel mounted at blue wall

The Hörknubbel is a handset of the latest generation. In addition to its elegantly timeless design, it offers high protection against vandalism and wear-phenomena that often accompany everyday museum and exhibition life. Operation and handling is considerably easy and straightforward so that truly every visitor is able to use it. Due to its clear design, the visitor intuitively holds the Hörknubbel to his or her ear and is immediately struck by a sound never experienced before. It is even possible to provide sound for smaller groups with only one single Hörknubbel.

Our engineers were careful to design a tool that can be used by one or more persons, since the compact case made of stainless steel and aluminium also feature a first-rate HiFi speaker with a maximum volume of 10 watt. The speaker allows a spectrum of frequencies that surpasses anything experienced so far. Thus, the optimized bass performance enables the authentic play-back of speakers with deep voices.

Needless to say that the Hörknubbel immediately reacts upon being picked up from its station and will start to automatically play-back the respective audio or video file. Mounting is implemented via a magnet and so that the device is thus not subject to wear and tear. Likewise, it is even possible to mount the station for overhead use.

A weak point of many competing products is the cable connecting the ear piece and station. The Hörknubbel, however, does not make any compromises: We use identically constructed armored cables that are also used for public phones by phone companies. This way we can guarantee an optimal degree of flexibility as well as breakage safety and buckling resistance. Additionally, the armored cable's slim design further enhances the Hörknubbel's aesthetic appeal. Also, it is not possible to remove the armored cables, as they are secured by covered screws that ensure any attempt to unfasten the cables.

The Hörknubbel is effectively secured against damage through improperly tuned amplifiers via an internally set protective circuit. This way, any kind of damage or destruction of the Hörknubbel due to overstressing is not possible. 

The Hörknubbel was built to last. More than anything, this objective is reflected in the material used and the way the Hörknubbel is constructed: all parts are made of stainless steel or aluminium. All visible screws feature coded safety caps. The speaker is protected by a specially developed stainless steel grid. Any kind of penetration of the 1 mm sound outlet holes through blunt objects is practically impossible. Likewise, the fine grid also protects the membrane of the speaker cone from dirt.


Hörknubbel unter truck tire

Our engineers are able to dismantle the Hörknubbel into its individual components within only a few minutes. Hence, we are able to quickly (and inexpensively) repair any kind of damages that might have occurred despite the high degree of protective measures that have been taken to secure the Hörknubbel. Parts stained with Graffiti can easily be cleaned and polished with an inexpensive fleece.


Hörknubbel in red color


Hörknubbel with child As a special service, we offer to refurbish your Hörknubbel at a special price. Your Hörknubbel is dismantled into its components and all parts are cleaned in an ultrasonic bath and polished afterwards. After this service, there is no sign of wear and utilisation over the past few years.

In addition to our standard designs, it is possible to select your customized color.* It is also possible to engrave the case. Our sales personnel are happy to assist you with the manifold possibilities to individually design your Hörknubbel.


Outdoor certificate for Hörknubbel

Hörknubbel and its advantages at a glance:

  • ergonomically appealing design and easy handling
  • easy to clean and care - including inexpensive refurbishing service by manufacturer
  • extremely high protection against vandalism and wear and tear
  • extra robust construction featuring highly resistant material - employment of armored cables
  • premium sound thanks to integrated HiFi speaker - best possible play back of sound, language and music - high efficiency reserve without delays
  • high audio performance allowing operation for smaller visitor groups
  • integrated protective circuit against damage caused by overstressing through improperly tuned amplifiers
  • customized color and case design*
  • complete scope of delivery with mounting plate, mounting material and control output - no hidden costs
  • reasonable price and fast availability, 24 h spare-parts service
  • 36-month warranty*


Text for invitation to tender


Technical Data:

 •  Frequency Response: 150 - 20.000 Hz
 •  Rated Power: 4 Watt
 • Music Load: 10 Watt
 •  Impedance: 4 Ohm
 • Limitation Circuit: yes, electronically
 • Average Sound Pressure Level: 84 dB (1W/1m)
 • Resonance Frequency: 250 Hz


Material: stainless steel and aluminium
 •  Connecting Cable: armored cable, length 900 mm, other length on request
 •  Temperature Range: - 25 °C up to + 70 °C
 •  Connecting Cable Audio: length approx. 200 cm, with open ends of cables



Connecting Cable Control Output:

length approx. 200 cm, 2pole
contact closed => earpiece removed
contact open => earpiece in bracket
 • Size: diameter Hörknubbel 77 mm, height 47 mm
diameter station 98 mm, height 20 mm
 • Weight: Handset approx. 350 grams
Wall mount with armored cable approx. 380 grams


Scope Of Delivery:

Hörknubbel feat. carrier plate
3.5 mm audio connector, bolted-type
operation and installation manual (German/English)
drilling template for mounting
installation kit
polishing and cleaning pad
cardboard packaging



customized color for case*
customized engravings on casing cover*


 frequenzgang dt



* The warranty does not cover damages based on vandalism and/or improper handling. Normal wear and tear is not a warranty case. Customized design of cases and color are subject to additional charges. Depending on the design, subsequent refurbishing (as a standard service by heddier electronic GmbH) of the Hörknubbel may be charged extra. heddier electronic GmbH is authorized to modify the products properties and features at any time and without prior notice. Subject to technical errors. Hörknubbel is a registered trademark of heddier electronic GmbH.

You would like to talk to us directly? Please call +49 (0) 2864 95178-0

Follow us:

Technical changes and mistakes reserved. Human Detector and Hörknubbel are registered trademarks of heddier electronic GmbH.

We use cookies on our website. Some of them are essential for the operation of the site. You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.