Shield Pro smart electronic hearing protection for shooters are the latest tactical shooting earmuffs by Emblem Outdoor. Powered by 2 AAA batteries these slim ear muffs for gun ranges, hunting, and industrial safety offer up to 200 hours of use for active noise cancelling with 4X sound amplification which allows you to hold normal conversations without removing the headphones. The active noise reduction kicks in within 0.02 seconds to immediately ear protection for shooting range noises that exceed 85 dB. The raised ridges on the single switch independently control the pickups on both sides and offer a strong tactile sensation, making the switch easier to use while wearing gloves. The noise reduction rating (NRR) of 23 dB helps protect you from hearing loss and tinitus. Includes an external audio cable to connect to various devices, such as a 2-way radio, cell phone, or MP3 player. - Black (2 Pack)