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.Features : 2 Hi-Gain Omnidirectional Microphones Full Dynamic Range Hd Speakers for Clear & Balanced Sound Low Noise / Frequency Tuned for Natural Sound Clarity Independent Volume Controls Sound Dampening Composite Housing