Impact Sport shooting earmuffs, ultra thin Impact Sport blocks the noise of gunshots and noisy machinery. The Impact Sport's patented sound amplification helps the wearer stay alert to their surroundings. By amplifying ambient sounds, allowing them to hear important communications (co-workers, alarms/warnings). The narrowest earmuffs on the market for comfort when shooting. Directionally placed stereo microphones provide more natural hearing. Ideal for hearing impaired workers. Air Flow Control technology provides optimum attenuation at all frequencies without increasing the size or weight of the earpiece.