Safariland Pro Impulse Hearing Protection Muff Bluetooth Black Noise Reduction Rating (NRR) 23 - Reliable hearing protection against harmful noise levels;5X Sound Amplification - Enhances environmental awareness while protecting against hazardous sounds;Bluetooth 5.0 Connectivity - Stream calls, music, and alerts effortlessly;Four Omni-Directional Microphones - Crystal-clear audio pickup for superior situational awareness;Sound-Activated Compression (0.02s Reaction Time) - Instant protection from loud impulses;HiFi 3.5mm Audio Jack - Plug in your favorite devices for high-fidelity sound;Molded, Padded Headband - All-day comfort with ergonomic design;Adjustable Sizing - Perfect fit for any head shape;One-Touch Volume Control - Effortless adjustment with a single knob;3-Hour Auto Power Off - Conserves battery life for extended use;Powered by 2x AAA Batteries - Convenient and replaceable power sourcetable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 3700 Product Group Code: 3700B Inactive: No