Comment: The original Razor Slim electronic ear muffs feature an ultra-low profile compact design and are available in a variety of color options. Full dynamic range HD speakers provide clear & balanced sound. Sound-activated noise compression has a 0.02 second reaction time to protect your hearing no matter the situation. Razor sets the standard for electronic hearing protection. These electronic earmuffs are extremely comfortable, providing a low profile fit, enabling ergonomic shooting that does not interfere with your stock when shouldering a firearm. Excellent hearing protection. One of best on the market. AVAILABLE IN BLACK Ultra Low Profile Ear Cups Includes two US Flag patches 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 w/ 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