Optime III is a super-muff, and has been developed for use in extremely noisy environments. The protection is based on a technology with a double casing that minimises resonance in the holder casing. This results in maximum high-frequency muffling,
3M™ PELTOR™ Optime™ I Earmuffs, 26 dB, Yellow, Helmet Mounted, H51...
3M Peltor Optime I Neckband Yellow H510B
3M Peltor Optime II Headband Earmuffs Dark Green H520AGQ
3M Peltor Optime 1 Folding Headband Yellow H510F-404-GU
3M Peltor Optime 1 Helmet Attachment Yellow
3M™ PELTOR™ Optime™ I Earmuffs, 28 dB, Yellow, Foldable, H510F-404-GU
