Walker's Razor Slim Right to Bear Arms Electronic Earmuffs - Ultra low profile ear cups with rubberized coating. Comfort headband with metal wire frame and compact folding design. Style that shows your support for those who lay it out all on the line. Ultra Low-Profile Ear Cups Rubberized Coating Two Hi Gain Omni Directional Microphones Audio Input Jack Low Noise / Frequency tuned for natural sound clarity Volume Control Compact Folding Design Comfort headband with metal wire frame Sound dampening composite housing NRR 23 Sound Activated Compression – 0.02 second reaction time Recessed Volume Control Knob External Battery Door Operates on 2 “AAA” batteries included