Automatically compresses harmful impulse and continuous noises to a safe hearing range below 85 dB while still allowing normal sounds to be heard without clipping or cutting. Enhances low level sounds to allow better hearing. Forward facing dual microphones provide accurate directional pinpointing of sounds. Independent volume controls for each microphone. Low profile earcups do not interfere with gun stocks. Adjustable headband for comfortable fit. Collapses for easy storage. Includes a set of replacement microphone covers. Two easy-access external battery compartments hold 3 AAA batteries each for long lasting use (approximately 280 hours). Batteries are included. Noise reduction rating of 23 dB. in passive mode.