Peltor™ 7000009665 Optime™ 105 Dielectric Earmuffs, 30 dB Noise Reduction, Black/Red, Over The Head Band Position, ANSI S3.19-1974, CSA Class AL Peltor™ 7000009665 Optime™ 105 Dielectric Earmuffs, 30 dB Noise Reduction, Black/Red, Over The Head Band Position, ANSI S3.19-1974, CSA Class AL