Earmor M31 MARK4 Active Hearing Protectors - Black

Active hearing protectors designed for use in environments with high noise levels, equipped with a noise reduction system up to 82 dB. The construction effectively protects your hearing while allowing you to pick up signals from your surroundings.

2 directional microphones placed outside each earcup pick up ambient sounds, which are then transmitted through speakers inside the hearing protectors. This solution allows you to maintain situational awareness without removing the hearing protectors from your head.

The automatic noise reduction mechanism is triggered when sound exceeds 82 dB, delivering protection at a level of (NRR) 22 dB. Lower sound signals are amplified according to the selected work mode, which facilitates communication and allows you to effectively monitor your surroundings.

Advanced electronics ensure an ultra-fast response time – less than 1 ms – allowing for almost instant dampening of sudden volume changes and eliminating hazardous sound impulses. The user has access to 5 work modes to optimise the hearing protectors’ functions depending on the situation.

Black earcups made from durable, flame-resistant polymer with a 3 mm thickness increase resistance to mechanical damage. This model meets the IPX5 standard, providing protection against jets of water from various directions at up to 12.5 litres per minute.

A specially designed headband enables even distribution of pressure around the head, ensuring a stable fit and maximising user comfort even during extended wear. The MIL-STD-810F standard confirms the ear defenders’ suitability for use in challenging field conditions.

Automatic switch-off after 4 hours of inactivity contributes to energy saving. The protectors are powered by 2 AAA batteries and the design is secured against accidental shutdown.

A waterproof battery compartment and securing loops on the battery caps minimise the risk of loss. The compact design allows for easy transport and storage alongside other equipment.

The set includes a U-174 plug compliant with NATO standards, compatible with devices used by the armed forces.

• hearing protectors
• cover
• case
• user manual
• spare inserts

• active reduction of acoustic impulses up to 82 dB
• noise reduction rating – (NRR) 22 dB
• directional microphones and playback of surrounding sounds
• response time below 1 ms
• 5 work modes
• IPX5 standard
• MIL-STD-810F standard
• U-174 plug
• power supply 2x AAA and auto switch-off
• earcups made from durable polymer