Champion Vanquish Electronic Hearing Protection was designed from theground up for the shooting sports. 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 <1ms
• 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