A portable NoiseBox that protects your meetings against eavesdropping and recording via mobile devices, wherever you are!

NoiseBox P1 keeps your discussions private.

Any smartphone, tablet or laptop can be used with a suitable app for eavesdropping on everything that its microphone can pick up. This even applies when the device is in sleep mode. NoiseBox P1 solves this problem and easily protects your meetings from eavesdropping, even if you need to hold mobile meetings when portability is a requirement. Place all devices with a microphone, such as laptops or mobile phones, in NoiseBox P1 and activate it. If you like, you can connect phones or tablets to USB ports in the NoiseBox for charging.

NoiseBox P1 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. NoiseBox P1 is primarily designed for situations where protection against eavesdropping is desired in a portable format, e.g., during interrogations in the field. NoiseBox P1 has space for several phones as well as the occasional tablet.

NoiseBox P1features


The durable case is IP67 rated.

ikoner chargex4

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

ikoner x8_phone

About 4 mobile phones can fit in NoiseBox P1.


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 4 USB ports inside the device.

NoiseBox P1 is designed for durability

NoiseBox P1 is built to withstand both wet and demanding environments. The case is IP 67 rated and constructed of impact-resistant polypropylene, which is extremely resistant to high-intensity impact.


Can be ordered with battery pack

As an accessory, there is also a battery pack for using the NoiseBox P1 without an external supply.

NoiseBox P1

NoiseBox P1 in black polypropylene

Technical specifications.

Noise outside NoiseBox:

40dBA @ 1m

External dimensions:


Internal dimensions:



4 kg

Power supply:

12 or 24 VDC (Car adapter included!)

Contact Marenius via the form below or call +46 31 691610 to order NoiseBox P1.
Alternatively, contact one of our distributors!