Independent volume control
Up to 40 dB of gain
Sound-activated compression technology
NRR 24 rated
The Primos Series Dual Muffs are the perfect choice for beginners and those looking for a set of reliable, no-frills muffs. Features 4 microphones, independent volume controls, and 40dB of gain. Sound-activated compression technology protects from sounds above 85dB. NRR rating of 24. Requires 2 1.5V N-cell batteries (included). Camo finish. Made in the USA.