For over 25 years Walker's has developed innovative solutions for hearing protection & enhancement. The Walker's line of products are widely considered the industry standard for shooting protection and safety. With the introduction of advanced digital circuitry & nano tech water repellence, Walker's continues to raise the bar.Specifications and Features: Two Omni Directional Microphones Full Dynamic Range HD Speakers for clear balanced sound Low Noise / Frequency tuned for natural sound clarity Independent Volume Controls Sound dampening composite housing Sound Activated Compression - 0.02 second reaction time Audio Input Jack Recessed Volume Control Knobs Comfortable headband w/metal wire frame External Battery Door Operates on 2 AAA batteries (included) Kryptek Camouflage