Feature:

-Noise reduction rating+NRR22

-3 levels electronic restoration of ambient sound

-Suppresses harmful noise above 82 dB

-Different reminder tones of ON/OFF&restoration adjusting

-Power by 2xAAA batteries,approx.600 hours of operation runtime with new alkaline batteries,4 hours auto shut-off mechanism

-Ergonomic designed cups provide super comfortable wearing&sealing

-Replace battery like Flash with 30 degree twist-to-open cap designed

-Built-in NATO Military Standard 7.0 Plug for PTT*

-Detachable microphone for both lefty or righty assembly

-Anti-sweat with NANO technology

-Foldable designed for easy portable

-Waterproof in accordance with IPX-5

-Tested and approved in accordance with CE/RoSH/ANSI S3.19-1974Standards/EN352-1:2002/EN352-4:2001/A1:2005/EN352-5:2002/A1:2005/EN352-6:2002/FCC

NRR (ANSI): 22 db
Power supply: 2 x AAA
Estimated battery life: ~ 350 h
Compliant with CE / RoSH / ANSI S3.19-1974
Waterproof: IPX-5
Color: Cadet Grey
Weight: 400 g