Bosch MH-402 MH-402-DM-A5F Leaflet

The MH Series of headsets gives you three (3) models when 
selecting the type of headset perfect for your environment:

• Single-Sided Headset without ANR (Active Noise 

Reduction) (model MH-300 and MH-300L)

• Dual-Sided Headset without ANR (model MH-302 

and MH-302L

• Dual-Sided Headset with ANR (model MH-402 and 

MH-402L)

The modular design of the MH Series allows for many options 
when configuring the headset for use in your specific environ-
ment. The MH Series headset and headphone modules are uni-
versal, which means they are fully interchangeable, providing 
flexibility in configuring the headset or headphone to meet your 
specific needs. The versatility of the MH Series is obvious when 
using the music/audio module. The music/audio module turns 
the headset into an everyday headset and allows connection to 
MP3 players, GPS, and many other audio applications.

The unique design of the MH Series headset is its headband 
location in relation to the ear cups, delivering more stability 
when the headset is being worn. Additionally, all user contact 
points, i.e., ear cup cushions, temple pads, headband cushions, 
and windscreen are completely replaceable allowing for sanitary 
use.

To replace the microphone or listen only module, do the 
following:

1.

Press the module release button located on the bottom of 
the ear cup.
The module pops up from the ear cup.

2.

Slide the module out and up taking care to clear the 
mounting tab from the mounting tab hole.

3.

To replace the module, align the mounting tab with the 
mounting tab hole.

4.

Slide the module into place.

5.

Press down on the module, snapping it into the ear cup.

The MH-402 and MH-402L ANR (Active Noise Reduction) Series Dual-Sided Headsets and Headphones 
provide the newest design in headset technology from RTS. Designed with you, the user, in mind with its 
rugged, modular design, lightweight construction, installation options, and its multi-function use beyond 
the live studio or theater venue. The modular design allows you to interchange modules to allow for the 
best headset configuration for any environment. The noise-canceling microphone, combined with the 
headphone transducers, provide clear and precise communication in noisy environments. Finally this 
headset is not limited to to live studio or venue communications. By installing the appropriate module, 
you can connect to an MP3 player or any other type of audio device and listen to the programming of 
your choice.

The MH Series Headsets are designed to provide clear communications for professional applications 
including live remote or studio broadcasting, film, TV, and theater intercom communications.

The MH Series Headsets and Headphones are audio level limited and conform to the  EU 
Council Directive 2003/10/EC. The time-weighted average of noise exposure levels for a 
nominal 8-hour working day is not expected to exceed 85dB SPL and a peak of 137dB 
SPL.