M31 electronic headphone offer superior hearing protection and enhance weak sound in the environment and track human voice to restore and optimize, while suppressing dangerous noises, such as explosions and gun, also improves the clarity of conversation and the surrounding environment alertness.
 
FEATURES
PROFESSIONAL NOISE-CANCELING EARMUFF : 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. Anti-sweat and waterproof in accordance with IPX-5.
HUMANIZED DESIGN:  Power by 2 x 1.5V AAA batteries (include batteries at purchase). New alkaline batteries provide approx. 300 hours of 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/FCC standards and personal hearing protection equipment certification.
 
IN SHORT
Available in Black, Foliage Green, Coyote Brown and Pink
NRR 22
Suppresses harmful noises
3-levels adjustable sound effect
Super fast attack time less than 1 ms
EMI/RFI shielding, increased RF immunity
Quick Detachable battery caps
Low profile cup design
Comfortable and fit PVC ear cushions
IPX5 water resistant
Runs on 2 x 1.5V AAA batteries
4 hours auto shut-off
Comply with CE/RoSH/ANSI
3.5mm AUX audio input cable