OPSMEN Electronic Shooting Earmuffs Ear Muffs Safety Tactical Gun Sound Amplification Hearing Protection NRR 22dB

PROFESSIONAL NOISE-CANCELING EARMUFF：(New Version 2020)OPSMEN M31-MOD3 is an electronic pickup and noise-canceling headphone during daily training. Suppresses harmful noise above 82 dB.Super fast attack time less than 1ms to avoid any noise impact. Noise reduction rating + NRR22.
360° FULL ENVIRONMENT PERCEPTION:M31-MOD3 can enhance weak sound in the environment and track human voice to restore and optimize, With 3-levels adjustable sound effect gain function to enhance hearing.Improves the clarity of conversation and the surrounding environment alertness.
COMFORTABLE WEARING EXPERIENCE：Adjustable headband with three different sizes. (Head circumference perimeter S: smaller 21″, M:21″-23.5″, L: bigger 23.5″). Foldable earmuff design. The design is ergonomic, fits the ears better, and provides more professional noise reduction protection.An anti-sweat.Waterproof in accordance with IPX-5.
HUMANIZED DESIGN：Power by 2x 1.5V AAA batteries(come include batteries). New alkaline batteries provide approx. 300 hours’ operation.4 hours auto shut-off mechanism, low battery prompt.Comes with 3.5mm AUX audio input cable for media devices.
SAFE MULTI-PURPOSE APPLICATION: Recommended for shooting,hunting,chainsaw,machining or in a noisy environment.Comply with CE/RoSH/ANSI S3.19-1974/EN352-1:2002/EN352-4:2001/A1:2005/ EN352-5:2002/A1:2005/EN352-6:2002/FCC standards and personal hearing protection equipment certification.