3M™ PELTOR™ Optime™ 105 Earmuffs H10A, Over-the-Head   Designed for durability and comfort The 3M™ PELTOR™ Optime™ Earmuffs feature a range of models for increasing hearing protection needs. The stainless-steel headband is designed to help keep Over-the-Head earmuffs in place. This product is designed to help prevent bending and warping.  Custom options  These earmuffs come in Over-the-Head, Hard Hat Attached and Behind-the-Head models - as well as different bright colors - so supervisors and jobsite managers can verify compliance. To meet the requirements of diverse industrial jobs, these earmuffs feature a variety of NRR options.  Compatible with 3M™ E-A-Rfit™ Dual-Ear Validation System  E-A-Rfit™ provides an accurate quantitative assessment of how much noise reduction a hearing protector provides to an individual worker.