The Howard Leight Impact Sport Bluetooth electronic shooting earmuff offers exceptional hearing protection while keeping you connected to important environmental sounds. With advanced digital sound compression, it reacts in just 0.5 ms to immediately reduce loud sounds to safe levels after a shot is fired. Featuring a 21 dB NRR (noise reduction rating), this earmuff is perfect for both hunting and range shooting, providing reliable protection without sacrificing awareness. The two high-gain, omni-directional microphones amplify low-level sounds by up to five times, ensuring you can hear vital commands at the range and critical environmental sounds while hunting. Integrated Bluetooth technology seamlessly syncs with your mobile device, allowing for music streaming and hands-free phone calls. Stay connected, safe and fully aware with the Howard Leight Impact Sport Bluetooth electronic shooting earmuff, the ultimate choice for those seeking high-performance hearing protection. The system offers a 0.5 ms reaction time, providing quick and safe shooting while offering hearing protection, the digital sound compression reduces harmful impulse noises like gunfire, with a noise reduction rating (NRR) of 21 dB Quick-connect Bluetooth 5.0 enables seamless syncing to a music player or mobile device for hands-free communication, with separate volume controls for Bluetooth and external environment amplification 5X sound amplification enhances low-level frequencies like range commands and conversation, (2) high-gain, omni-directional microphones pinpoint sound sources, while recessed placement reduces wind noise Low-profile ear cups with air flow control provide firearm stock clearance, the padded, adjustable headband ensures a comfortable fit, while the compact, foldable design allows for easy storage The kit includes a Bluetooth earmuff, rechargeable lithium-ion battery and Micro-USB charging cable, the automatic shut-off feature after 4 hr extends battery life