OPSMEN was founded in 2016 from a R&D department with over 10 years of experience in the development. OPSMEN has excellent optics and acoustics laboratory and automated production line in China, product including our best-in-class electronic hearing protection gear, earmuffs, ear plugs and Combat Communication System, weapon-lights and tactical illumination system. The company's comprehensive line of products is used by workers around the world in a broad range of markets, including the Law enforcement unit, military, sport shooting, hunting, the fire service, the construction industry and mining. We anticipate and respond quickly to issues, opportunities, and our customers needs. Put simply, We aim to keep our customers happy by listening closely to their needs, delivering high-quality products, and backing them with support services unmatched in the industry. It is our foundational value. Whether we are testing equipment or advising a customer on how to manage a hazardous situation, we conduct ourselves with unwavering honesty, professionalism, and the highest levels of ethical behavior. Without integrity, nothing else matters at OPSMEN.

MODEL	C5	C7	M30	M31	M32	M31X	M32X
Battery	Passive	Passive	2x AAA	2x AAA	2x AAA	2x AAA	2x AAA
Battery Life	NA	NA	130hrs	350hrs	350hrs	400hrs	400hrs
NRR	26	32	24	22	22	22	22
Listening Sensors	NA	NA	2	4	4	4	4
Communication	NA	NA	NA	NA	S10	NA	S09
Connectivity	NA	NA	3.5mm	3.5mm	NATO 5mm	3.5mm	NATO 5mm

Waterproof	NA	NA	IPX-5	IPX-5	IPX-5	IP67	IP67
EMI/RFI Shieldng	NA	NA	No	Yes	Yes	MIL-STD-416	MIL-STD-416
Standard	ANSI/CE	ANSI/CE	ANSI	ANSI/CE	ANSI/CE	ANSI/CE/MIL-STD-810G	ANSI/CE/MIL-STD-810G

3.5mm Audio Cable with Mic for Opsmen M31/M31H