3M™ Peltor™ Optime™ 105 dBA behind-the-head earmuffs from Blue Monster Prep feature low-profile earcups that fit well with most helmets, and double-shell technology for effective hearing protection.
Features
- Patented Twin-Cup™ 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
- Includes 10 pairs of Earmuffs
*The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.