Walkers Razor Slim Electronic Ear Muffs 23dB NRR 1 Pair OD Green. With a noise reduction rating (NRR) of 23 dB these earmuffs provide exceptional protection in even the loudest environments ensuring your hearing stays safeguarded. Say goodbye to muffled sounds and distorted frequencies. The built-in high-definition speakers of the Razor Slim Electronic Muff deliver clear amplified audio directly to your ears. Whether youre at the range communicating with your hunting buddy or at the job site you can enjoy crisp natural sound quality without compromising your safety. Specifications for Walkers Razor Slim Electronic Ear Muffs: Manufacturer: Walkers NRR: 23 dB Quantity: 1 Pair Battery Type: AAA Battery Quantity: 2 Frame Color: Black Package Contents: Walkers Razor Slim Electronic Ear Muffs Walkers GWP-RSEM-ODG: Razor Slim Electronic Ear Muffs 23dB NRR OD Green