Champion Traps and Targets Headphone Electronic Nanoslim Teal. Each muff was acoustically modeled ongunshot reports to achieve the optimal balance of all day comfort and noisereduction. They feature Safe Level Sound Compression Technology with arefresh time 1ms. Two Full Dynamic Range HD speakers ensure everythingyou hear is crystal clear. Omnidirectional microphones pick up everythingaround you giving a natural sound while minimizing wind noises. Features:Safe Level Sound Compression Technology Acoustic Foam for All Day Comfort Sound Refresh Time 2 Full Dynamic Range High Definition Speakers 2 Omnidirectional Microphones 3x Amplification 200-Hour Runtime for Models 40978 and 40979 3 Hour Automatic Shut Off AAA Batteries Included Specifications for Champion Traps and Targets Headphone Electronic Nanoslim: Manufacturer: Champion Traps and Targets Color: Teal Features of Champion Traps and Targets Headphone Electronic Nanoslim Less than 1 millisecond sound compression Omni-directional microphones High definition speakers 2-AAA batteries included Package Contents: Champion Traps and Targets Headphone Electronic Nanoslim Champion Vanquish Electronic Hearing Protection was designed from the ground up for the shooting sports. Each muff was acoustically modeled on gunshot reports to achieve the optimal balance of all day comfort and noise reduction.They all feature Safe Level Sound Compression Technology with a refresh time Features/Specifications: Less than 1 millisecond sound compressionOmni-directional microphonesHigh definition speakers 2-AAA batteries included Included Accessories: Carrying Bag; Manual/Instructions