Peltor Optime 105 Behind-the-Head Earmuffs H10B

3M™ Peltor™ Optime™ 105 behind-the-head earmuffs features low-profile earcups that fit well with most helmets, Feature double-shell technology for effective hearing protection.
• Patented Twin-Cup(TM) design has soft, foam-filled earmuff cushions.
• Behind the head design allows for easy use with hard hats.
• Liquid/foam filled earmuff cushions.
• Color-coding for compliance sighting.
• Noise Reduction Rating (NRR): 29 dB. CSA Class AL