Earmor M31N-Mark 3 MilPro Active Hearing Protectors - Black

Active hearing protectors designed for use in environments with high noise levels, fitted with a noise reduction system down to 82 dB. The M31N Mark 3 model provides an effective acoustic barrier while still allowing sound from the surroundings to be heard.

Two directional microphones mounted on the outside of each ear cup pick up sound signals, which are then played back through speakers located inside the hearing protectors. This design allows you to maintain situational awareness without needing to remove the protectors.

Automatic noise limitation above 82 dB provides protection, ensuring hearing safety at a level of (NRR) 22 dB. At the same time, quieter sounds are amplified depending on the selected mode, making conversations easier and allowing for better awareness of what is happening around you.

Fast-acting electronics deliver a response time of less than 1 ms, enabling the system to instantly react to sudden changes in volume and shield you from harmful sound impulses. You can select from 5 work modes and adjust the settings to match your environment.

The black ear cups are made from robust polymer with a thickness of 3 mm, providing excellent resistance to mechanical damage. Compliance with the IP67 standard ensures a high degree of dust and water resistance.

A specially designed headband allows for even pressure distribution, ensuring the protectors sit stably on your head and remain comfortable even during many hours of wear. The MIL-STD-416 standard certifies the design is ready for use in tough conditions.

An automatic switch-off system after 4 hours of inactivity reduces power consumption. The device is powered by 2 AAA batteries, and also features safeguards to prevent unintentional switching off.

The waterproof battery compartment and securing loops for battery caps help minimise the risk of loss. The compact size makes it easy to transport and store with your gear.

Built-in 3.5 mm AUX socket and included cable allow external devices such as radios, phones, or audio players to be connected. You can listen to announcements or audio directly via the protectors, so there’s no need for additional earphones.

The set is suitable for helmet mounting. A Velcro mounting kit is also included, allowing you to attach the protectors directly to, for example, a cap.

• Hearing protectors
• 3.5 mm AUX cable
• Mounting kit
• User manual

• Active reduction of acoustic impulses to 82 dB
• Noise attenuation value – (NRR) 22 dB
• Directional microphones and ambient sound playback
• Response time under 1 ms
• 5 work modes
• IP67 rating and MIL-STD-416 standard
• Helmet mounting and cap fixing option
• 3.5 mm AUX input
• Powered by 2× AAA batteries and automatic switch-off
• Cups made from durable polymer