Peltor Optime 3 III Adjustable Ear Defenders (-35 dB Noise Reduction)
ISOtunes LINK EN352 | Bluetooth Ear Defenders | Wireless, Over-Ear Hearing Protection
PRETEX Ear Defenders with SNR 34dB - Lightweight Ear Muffs Protection for Adults - Adjustable Noise Cancelling Headphones - Over Ear Earmuffs for Work or Home - Yellow : Amazon.co.uk: DIY & Tools