Enhance your natural hearing with all-digital, high-definition sound. The Sound-Activated Compression circuit, coupled with the noise reduction rating of 29db (among the highest in the industry), deliver distortion-free sounds and less circuit noise. At less than 1/4 oz., they’re hardly noticeable. Foam earpieces reduce wind noise and protect hearing, while enhancing sound and protecting you from muzzleblasts. Wear them with or without eyeglasses. Includes a foam plug with tube (NRR 29db), two foam plugs (NRR 22db), three silicone ear buds (small, medium and large) and a Universal Tube with an adapter that accepts foam plugs or silicone ear buds. Sold per each.