Experience superior hearing protection with the ULTRX electronic earmuff - designed for optimal sound clarity, comfort and safety. With a noise reduction rating (NRR) of 23 dB, these earmuffs effectively shield your ears from harmful noise levels while ensuring you stay aware of your surroundings. The high-frequency microphone enhances ambient sounds, while the intelligent 82 dB cutoff feature automatically blocks out dangerously loud noises to protect your hearing. Powered by a single AAA battery, the lightweight, foldable design makes it easy to carry wherever you go. Elevate your hearing protection with the ULTRX electronic earmuff - where safety meets convenience. ANSI S3.19 tested and certified with NRR 23 dB protection, ensuring superior hearing safety in high-noise environments A built-in high-frequency microphone enhances sound clarity and awareness for improved performance in various environments The built-in microphone automatically shuts down at 82 dB, providing an added layer of hearing safety in loud environments Powered by (1) AAA battery, offering extended battery life for long lasting, uninterrupted use (battery not included) A compact foldable design allows for space-efficient storage and transport ULTRX technology delivers a modern fusion of sound and wave protection for an unparalleled audio experience