Bundle Includes: 4 x Walker's Razor Patriot Series Hi-Gain Omnidirectional Microphone Electronic Muffs (Kryptek Camo) Ultra Low-Profile Ear Cups: The Walker's Razor Slim Patriot Series Electronic Earmuffs feature an ultra-low profile and compact design Blazing-Fast Reaction Time: The sound-activated compression has a blazing-fast 0.002-second reaction time to ensure your hearing is always protected Comfortable Headband: The Patriot Series Razor ear muffs feature a hook-and-loop attachment on the headband that is compatible with your favorite patch Clear and Balanced Sound: Two hi-gain omnidirectional microphones pick up outside noise and broadcast it through full-dynamic-range HD speakers for an ultra-clear, balanced sound