Protects your meetings against eavesdropping and recording via mobile devices!

NoiseBox M1 keeps your discussions private in a small format.

Every smartphone with a suitable app can be used for listening in on everything that its microphone can pick up. This even applies when the device is in sleep mode. NoiseBox M1 solves this problem and easily protects your meetings from eavesdropping. Put the mobile phones in NoiseBox M1 and activate it. If you like, you can connect phones to the USB ports in the NoiseBox for charging.

NoiseBox M1 is the result of a request from the Swedish Police and Swedish Armed Forces for better protection against eavesdropping via smartphones. They have tested it and found it very useful. Since 2012, thousands of NoiseBox® units have been delivered to Swedish and foreign authorities and businesses. . The stylish box in solid beech is handcrafted in Sweden and fits nicely in all conference rooms.

NoiseBox M1 features


A magnetic lock keeps the box well sealed for optimal sound attenuation.

ikoner chargex2

Two phones can be simultaneously charged via USB ports built into the NoiseBox.


2 mobile phones can fit in NoiseBox M1.


NoiseBox® is based on advanced sound algorithms developed by Marenius.

NoiseBox has integrated speakers with specially developed electronics that produce wide-spectral acoustic noise. This noise effectively blocks the microphone in phones or other audio-recording devices placed inside the NoiseBox. This enables phones to be turned on during confidential discussions without the risk of eavesdropping. Should a phone ring, the ring tone can still be heard outside the NoiseBox, preventing important calls from being missed, and if you like, the phones can also be charged while in the NoiseBox via 2 USB ports inside the device.

NoiseBox M1 is produced in FSC-certified beech

NoiseBox M1 fits perfectly in its surroundings, whether in a conference room or office,
with its discrete exterior of rod-glued beech.

NoiseBox M1

NoiseBox M1 in beech

Technical specifications.

Noise outside NoiseBox:

28dBA @ 1m

External dimensions:


Internal dimensions:



4 kg

Power supply:

24 VDC, 30 VA (included)

Contact Marenius via the form below or call +46 31 691610 to order NoiseBox M1.
Alternatively, contact one of our distributors!