Check the listing for details. New 3M Folding Earmuff NRR 23dB. Condition: New, Made in China. Listed at 27.13 USD. Protect your hearing with these high-quality 3M Folding Earmuffs with a noise reduction rating (NRR) of 23dB. These earmuffs are designed to provide a comfortable fit and are great for use in industrial workplaces, construction sites, or any other setting where noise levels can be harmful to your hearing. The 3M brand is known for its quality and reliability, and these earmuffs are no exception. Whether you're a professional worker or a DIY enthusiast, these earmuffs will allow you to work safely and effectively while reducing the risk of hearing damage. They are easy to adjust and fold for storage, and the durable construction ensures long-lasting use. Don't let noise levels impact your hearing - invest in these 3M Folding Earmuffs today.