Walkers Razor Slim Electronic Muffs (Black) with Walkie Talkie Attachment BundleWalker's Razor Slim Electronic Muff (Black) Protect your hearing from loud noise with the Walkers Razor Slim Electronic Muff. These thin earmuffs were engineered from the ground up with the goal of having the lowest possible profile without compromising the hearing protection and amplification properties of the muff. Delivering an impressive noise reduction rating (NRR) of 23dB, the Razor series is sure to protect your hearing without interfering. The