3M H10AHV Peltor Optime Hi Visibility Earmuffs NRR 30 dB - Industrial Safety Products
Retevis EHN006 Behind the Head Earmuffs, Noise Reduction Safety Ear muffs, Anti-slip Headband,Use with Hat, Hearing Protection for Mowing,Woodwork,Snowblowing,Ear Muffs for Men(1 Pack) - Amazon.com
DECITECH™ E1 Active Electronic Hearing Protection, Over the Head Earmu
3M™ PELTOR™ Optime™ 95 Folding Earmuffs H6F/V, Over-the-Head, 10 EA/Case | 3M United States