Allen ULTRX Bionic Features The Allen ULTRX Bionic electronic earmuff is built around dual hi-gain stereo microphones that amplify ambient sound for better situational awareness while automatically cutting off at 82 dB within 0.02 seconds to guard against hearing damage from gunfire or other sudden loud noise. Studio Harmonics technology processes that amplified sound for clarity comparable to studio-grade audio equipment so range commands and conversation remain easy to follow even with the muffs on. Rated at 22 dB NRR and ANSI S3.19 certified this earmuff meets recognized industry standards for hearing protection. Two AAA batteries power the electronics for up to 16 hours of use keeping the muffs ready for a full day at the range. Comfort features include an extra-padded headband and pillow foam ear cup padding both designed to reduce fatigue during extended wear over the head. The rubberized exterior shell adds durability for long-term use in the field or at the range standing up to repeated handling and transport. An auxiliary port lets the shooter plug in an external device for personalized audio extending the earmuff s usefulness beyond basic hearing protection. Finished in Midnight Gray the Allen ULTRX Bionic combines comfort durability and modern electronics in one over-the-head hearing protection package. Allen ULTRX Bionic Specifications Manufacturer: Allen Model: ULTRX Bionic Type: Electronic Earmuff Color: Midnight Gray NRR: 22 dB Style: Over the Head Battery Size: AAA Battery Life: Up to 16 hrs Includes: Microphone Available At: GrabAGun