3M Pro-Grade Noise-Reducing Earmuff, NRR 30 dB, Lightweight and Adjustable, Black, One Size - Amazon.com
3M Peltor H6AV Optime 95 Over the Head Noise Reduction Earmuff, Hearing Protection, Ear Protectors, NRR 21dB, Ideal for Machine Shops and Power Tools, Beige - Industrial Test
3M H9A PELTOR™ Optime™ 98 Black / Yellow Over-the-Head Earmuffs
3M™ Peltor™ Optime™ 95 Cap-Mount Earmuffs, Hearing Conservation H6P3E/V 10 EA/Case | 3M United States
3M WorkTunes Connect, AM/FM Hearing Protector, Bluetooth Technology - Walmart.com
3M Basic Hearing Protection Earmuffs in the Hearing Protection department at Lowes.com
3M™ WorkTunes™ Connect with Bluetooth® Wireless Technology Earmuff - Your Ears Rock