WALKER’s GWP-RSEM-MCCG RAZOR SLIM Shooter Low Prof. EARMUFFS 23dB MultiCam Gray. Ultra Low-Profile Ear Cups. Two Hi Gain Omni Directional Microphones. Low Noise / Frequency tuned for natural sound clarity. Comfort headband w/ metal wire frame. Sound dampening composite housing. Sound Activated Compression – 0.02 second reaction time. Recessed Volume Control Knob External Battery Door. Operates on 2 “AAA” batteries included.