3M Peltor Optime II Cuffie auricolari protezione udito H520A-407-GQ classe 2 Brand_Lotto Torque moment (ISO 10964) N

Torque moment (ISO 10964) N M initial: 25-35

3/8 "right attack

2 (without disk)

Radial attack

3M Peltor Optime II Cuffie auricolari protezione udito H520A-407-GQ classe 2 Brand_Lotto Torque moment (ISO 10964) NHeadphones Hearing protection Optime II Optime II are headphones with high performance acoustic protection developed for use in extremely noisy environments. The protection is based on a technology with a double casing that minimizes resonance in the containment envelope For maximum attenuation of high frequencies. An acoustic connection between internal volume and volume between the casings in turn ensures maximum attenuation to low frequencies.