M300A Electronic Hearing Protector - Coyote Brown

EARMOR M300A Electronic Hearing Protector – Active Tactical Ear Protection (NRR 22)

The EARMOR M300A is a slim, lightweight electronic hearing protector built for players who want maximum situational awareness without sacrificing comfort. Ideal for milsim, outdoor skirmishes, and noisy CQB environments, the M300A amplifies important field sounds (voices, movement, callouts) while automatically limiting harmful impulse noise for safer, clearer gameplay.

Why the M300A works so well for airsoft

• Active sound amplification: dual microphones boost ambient audio so you can track footsteps and communicate clearly.
• Fast impulse suppression: reacts in <1 ms and reduces peaks above 82 dB to protect your hearing.
• Low-profile comfort: slim cups reduce interference with rifle shouldering, goggles straps, and helmets.
• One-knob control: integrated on/off + volume rotary knob for quick adjustments with gloves.
• Field-ready build: foldable design for easy transport and IPX5 water resistance for bad weather games.

Designed for long sessions

Powered by 2× AAA batteries, the M300A delivers up to 60 hours of operation and includes an auto shut-off (4 hours) to help prevent battery drain when you forget to turn it off between stages or respawns. The multi-layer headband is built for comfort during extended milsim ops.

Pair it with your loadout essentials: Helmets & Helmet Accessories and Airsoft Accessories. Shop the brand here: EARMOR Collection.

Specifications

Type	Electronic hearing protection earmuffs (active ambient amplification)
Noise Reduction	NRR 22 dB (SNR 29)
Suppression Threshold	82 dB
Reaction Time	< 1 ms
Microphones	2× omnidirectional (environment pickup)
Frequency Range	20 Hz – 20 kHz
Speaker Impedance	32 Ω
Power	2 × AAA (not included)
Battery Life	Up to 60 hours
Auto Power Off	Yes (after 4 hours)
Water Resistance	IPX5
Operating Temperature	-20°C to +60°C
Weight	Approx. 295 g (±10 g)
Certifications	ANSI S3.19-1974, EN352-1:2020