SAFEYEAR Noise Cancelling Ear Defenders Adult, Black SNR 32dB Ear Protectors Ear Muff for Men & Women, NNR 26dB Pro Over Hearing Protection Earmuff for Shooting, Sleeping, Industrial, Site Work etc :
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