Warranty, Certification & Repair

How long is the warranty?
Our products have a warranty period of two years. The warranty covers the product itself and excludes damage caused by vandalism or improper use.

What certifications do the handsets carry?
The VIA and USO handsets carry a CE certification. Users outside the European Union are responsible for compliance with local certification requirements.

What should I do if a handset no longer works?
Please contact us via email produkte@molitor-berlin.de
You can send us the defective handset for trouble shooting. If the product is still covered by the warranty, we will return the repaired handset back to you as soon as possible. If the warranty does not apply, we will contact you with an offer for repair costs.

Does the warranty apply after repairs have been made?
The period of the warranty is two years from purchase. Repairs do not extend the warranty.

Where can I order replacement parts for my handsets?
Since we manufacture the handsets in our own facility, you can order all replacement parts from molitor. Please contact us regarding all necessary repairs by email produkte@molitor-berlin.de

Delivery & Sales

How long are the delivery times?
The standard versions of our handsets and our media players are always in stock and can be delivered anywhere in Germany within two to four working days upon receipt of purchase order. Deliveries to most European countries generally take between four to five working days. Deliveries to most countries outside Europe normally take between five and seven working days.
For bulk orders a delivery date is stated upon request. Please ask us about delivery times for all custom models or for individual materials and colours by contacting us at produkte@molitor-berlin.de

Do you also deliver abroad?
Our customers from abroad (with the exception of customers in Switzerland) can order directly from us. Delivery costs can be viewed on the order page.
Customers from Switzerland should please place their purchase order with our Swiss supplier Crystal Display Electronics AG www.crystal-cde.com

Handset Manufacture

Where are the handsets manufactured?
We produce the handsets VIA, USO and PLUX in our own workshop in Berlin.

What are the handsets made of?
The VIA casing is made of polyamide (PA) as standard, while the USO casing is made from PVC. The USO and VIA handsets are also available in custom versions in natural aluminium, anodised aluminium or stainless steel, while the VIA handset is also available in Hytrel® soft plastic. We now offer our VIA and USO as anti-bacterial and anti-viral options made from Alperform® with silver ions

The PLUX casing is made from hard rubber and is only available in this version.

What custom designs are possible?
All handsets can be ordered from our online shop with a pre-assembled 3.5 mm or 6.3 mm jack for an extra fee. The length of the metal protective hose can be adjusted to suit your requirements. The hose can also be provided in white or black with plastic casing. For tabletop audio stations, we recommend the tabletop base featuring a special cable retraction mechanism when the handset is placed back on the base, enabling the cable to disappear smoothly underneath the tabletop. The VIA and USO are also available with a language toggle switch. The cover can be engraved to indicate the languages. Logo engravings can be done upon request. Please email produkte@molitor-berlin.de

Handset Functions

What connections do I need to be able to use the handsets?
Our handsets are delivered with open cable ends because the connections can vary depending on the type of player used. All of our media players, including the AP 01, MP 01 as well as the MP 02 have been optimised with all necessary connections for handsets with a switch contact.

Are handsets available with jacks?
You can order all our handsets with pre-assembled 3.5 mm and/or with 6.3 mm adaptor jacks for an extra fee.

Can you explain the cabling?
All handset wiring diagrams can be found in their respective support pages.


Which molitor handsets feature the auto-start function?
The VIA and USO handsets feature a reed contact as standard. Our DIO headphones can also be prepared with the auto-start function. With the right programming and player, this enables the content to start automatically.
Ie. Lifting the handset from the magnetic base starts the track. Setting the handset back to the magnetic base stops the track.

What is a reed contact?
The reed contact is a switch that interacts with the magnetic base of the handset to open or close a circuit. The reed contacts we use are N/O (normally open) switches. This means that the contact is closed when the handset is lifted and the magnetic field is removed from the handset base.

What is a language toggle switch? How does it work?
The language toggle switch is an optional extra that enables the user to switch between two audio signals on the handset; for example between audio content in German and one in English. We can offer two technical solutions in this regard:

1) Switch – After switching, the user can hear the relevant point in the track in another language. Playback is not interrupted.
2) Push – button – After switching, the track starts again from the beginning (depending on how the player is programmed).

What is the difference between a toggle switch and a push-button?
The toggle switch remains in the switched position and can select one of two signals (audio track, language, etc.). It does not affect the playback or any other functions of the media player.

The push-button requires the connected player to have a GPIO input. In this way it can be used to do anything that the GPIO inputs can do. This could include switching through two or more files in different languages, Play/Pause or simply cycling through multiple audio tracks.

What is a GPIO interface?
The GPIO (general purpose input/output) interface is a universal connection, e.g. to a media player, whose contacts can be requested during programming in order to control functions such as how a clip is started and stopped by a handset activating a reed contact.
The GPIO interface is specified by the manufacturer of the player. The device’s instruction manual will provide information on the configuration and possible functions. We can provide support for devices tested by us here.

Mono or Stereo?
By design, audio handsets have only one audio channel and so play back audio in mono.

Our DIO headphones can play back audio content in stereo.

Is it necessary to use a headphone amplifier?
This depends on the type of media player used for the audio source. All molitor media players including the AP 01, MP 01 and MP 02, feature an integrated headphone amplifier and do not require anything additional.

A designated adjustable headphone socket is required for quality signal output.
For players that do not have this function, a simple headphone amplifier will suffice.

Is there a booster function?
For safety reasons, our handsets only provide playback at a volume that is tolerated by the human ear. For open audio systems in rooms, we recommend using a loudspeaker.

Can the handsets be used by people who wear hearing aids?
Both our USO and VIA handsets can be made to include an induction hearing loop for use with a hearing aid. It interacts with the T-Coil setting on a listeners hearing aid and allows the signal to be passed directly to the wearer.

Are handsets suitable for outdoor use?
Our standard handsets have been designed for use indoors. However, the soft plastic VIA made from Hytrel can come in an outdoor suitable variant.

Media Players

What are the differences between your media players?

  • The AP 01 is our interactive audio player.
  • The MP 01 is our Full HD interactive media and video player.
  • The MP 02 is our flagship 4K network capable interactive media and video player.

Which media player is required for the handsets?
You need an audio or video player as a source in order to be able to use the handsets. If you want to use the reed switch function, the player needs to be interactive and equipped with the relevant function in its programming.
All of our media players, the AP 01, MP 01 and MP 02, have been specially designed for use in combination with our handsets and are very easy to install.
A (mini) PC can also be used as a source and can interpret the reed contact in the handset with the relevant interface.

Which media player do you recommend?
There are many interactive audio and video players available on the market that will work well in combination with our handsets. Which one is best suited for your needs depends on what you want your audio or video station to do. Our media players have been specially designed for use in combination with our handsets and all are very easy to install. We would be happy to advise you. Please contact us by email support@molitor-berlin.de.

How many files can I play?
Our media players can play as many files as you would like, depending on the programming. Each of our media players feature nine inputs in its GPIO interface, which can be programmed to select various tracks in particular, or cycle through a larger list.

For our MP 02, it also is network capable and so can be controlled via UDP, serial and many other types of USB-inputs to play as many files as you require.

What is a GPIO-/ GP-IN-/ GP-OUT interface?
The GPIO (general purpose input/output) interface is a universal connection, e.g. to a media player, whose contacts can be requested during programming in order to control functions such as how a clip is started.
The GPIO interface is specified by the manufacturer of the player. The device’s instruction manual will provide information on the configuration as well as possible functions.
We can gladly provide support.

How many handsets/headphones can be connected to one media player?
The integrated headphone amplifier in our media players, support up to two audio handsets or headphones per player. These will always play the same content at the same time. To add additional handsets or headphones, an external headphone amplifier is required.

Does molitor support in the programming of my application?
We can provide scripts for applications that have already been successfully tested or create playlists to meet customer requirements.
For questions regarding the function please contact our technical support team at support@molitor-berlin.de

How do I program the media player?
This support website includes articles with instructions on how to program the players. If you need help or would like something made for you, please let us know the functions required by contacting us via email support@molitor-berlin.de.