If you work or shoot in loud, high‑intensity environments, the SG‑31 is the smartest upgrade you can make for your hearing. With a powerful NRR 31 dB, the SG‑31 delivers maximum protection without the bulk, heat, or isolation of traditional earmuffs.
This is noise cancelling through physics, not electronics — so you stay protected and aware.
The SG‑31 reduces damaging noise while keeping speech and important sounds clear. Perfect for situations where noise comes and goes — no need to remove your hearing protection to talk or listen.
No pressure. No sweating. No ear fatigue. The lightweight acoustic chamber design folds easily and rests comfortably around your neck when not in use.
Indoor shooting ranges, chainsaws, jackhammers, heavy equipment, aircraft maintenance — if it’s loud enough to damage your hearing, the SG‑31 is built for it.
NRR 31 dB — Maximum passive protection
Patented ZEM® acoustic chamber technology
Noise cancelling without batteries or electronics
Hear speech and important sounds — non‑isolating design
Lightweight, compact, and folds to fit in a pocket or tool bag
Adjustable headband for a secure, comfortable fit
Made in the USA
Satisfaction Guaranteed or Your Money Back
Shooting (indoor & outdoor)
Chainsaws & forestry
Power equipment
Jackhammers
Construction & industrial noise
Aircraft maintenance
Any loud, intense noise environment
Ear muffs are hot, heavy, and isolating
Ear plugs are uncomfortable and often inserted incorrectly
SG‑31 is lightweight, comfortable, and keeps speech clear
Flat attenuation = no distortion
Superior low‑frequency reduction = better awareness
This is a third category of hearing protection — not a plug, not a muff.
If you work or shoot in loud, high‑intensity environments, the SG‑31 is the smartest upgrade you can make for your hearing. With a powerful NRR 31 dB, the SG‑31 delivers maximum protection without the bulk, heat, or isolation of traditional earmuffs.
This is noise cancelling through physics, not electronics — so you stay protected and aware.
The SG‑31 reduces damaging noise while keeping speech and important sounds clear. Perfect for situations where noise comes and goes — no need to remove your hearing protection to talk or listen.
No pressure. No sweating. No ear fatigue. The lightweight acoustic chamber design folds easily and rests comfortably around your neck when not in use.
Indoor shooting ranges, chainsaws, jackhammers, heavy equipment, aircraft maintenance — if it’s loud enough to damage your hearing, the SG‑31 is built for it.
NRR 31 dB — Maximum passive protection
Patented ZEM® acoustic chamber technology
Noise cancelling without batteries or electronics
Hear speech and important sounds — non‑isolating design
Lightweight, compact, and folds to fit in a pocket or tool bag
Adjustable headband for a secure, comfortable fit
Made in the USA
Satisfaction Guaranteed or Your Money Back
Shooting (indoor & outdoor)
Chainsaws & forestry
Power equipment
Jackhammers
Construction & industrial noise
Aircraft maintenance
Any loud, intense noise environment
Ear muffs are hot, heavy, and isolating
Ear plugs are uncomfortable and often inserted incorrectly
SG‑31 is lightweight, comfortable, and keeps speech clear
Flat attenuation = no distortion
Superior low‑frequency reduction = better awareness
This is a third category of hearing protection — not a plug, not a muff.