Walkers Razor Patriot Electronic Ear Muffs (Olive Drab Green) BundleWalkers Razor Slim Electronic Muff (OD GRN Patriot) Protect your hearing from loud noise with the Walkers Razor Slim Electronic Muff. Delivering an impressive Noise Reduction Rating (NRR) of 23 dB, this muff is sure to protect your hearing, without interfering. It features comfort fit headband with metal wire frame for all day shooting, with a slim and compact folding design that takes up less space in your bag. The Razor Slim Electronic Muff operates