Noise Reduction Rating: Delivering an impressive Noise Reduction Rating (NRR) of 23 dB, this muff is sure to protect your hearing, without interfering Ergonomic Design: This muff features two omnidirectional microphones to assure that you don't miss anything and get crisp clear audio. It is engineered with ultra-low profile ear cups with rubberized coating Bundle Includes: 2 x Walker's Razor Slim Electronic Shooting Hearing Protection Muff (American Flag Distressed, Tan), 2 x Walker's Razor Tactical/Hunting Walkie Talkie Attachment, 2 x Walkers Full Coverage Sport Shooting Glasses (Clear) and 2 x Top Brand High-Quality Microfiber Cleaning Cloth