Reliable hearing protection in a slim, low-profile design. Gear up for your next trip to the range with these Walker's Game Ears Razor Slim Electronic Muffs. They feature a 23db noise reduction rating and Sound Activated Compression that protects your ears from the loud, damaging noise of gunfire and heavy machinery, while still allowing you to hear range commands and communicate with other hunters or shooters in your group. Slim, low profile design won't get in the way of your cheek weld and fits easily in your range bag. Two, high-gain omni directional microphones for sound amplification; Full dynamic range HD speakers for clear, balanced sound; Low noise / frequency tuned for natural sound clarity; Independent volume controls; Sound dampening composite housing; Sound activated compression with 0.02 second reaction time; Audio input jack for listening to your MP3 player or smartphone; Recessed volume control knobs; Comfortable headband with metal wire frame; External battery door for easy battery replacement; Operates on 2 'AAA' batteries (included); Noise Reduction Rating: 23 db; Auto Shut-off: Yes; Sound Amplification: Yes; Batteries: 2 AAA (included); Weight: 15.2 oz.; Mfg. Number: GWP-RSEM; Order today! Walker's Game Razor Slim Electronic Ear Muffs