Gear up for your next trip to the range with these Walker'sA(R) Razor Sole Electronic Ear Muffs. They feature a 23 db 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. 23 db Noise Reduction Rating Low-profile ear cups High-gain omnidirectional microphones Sound activated compression with quick 0.02-second reaction time Low noise/frequency tuned for natural sound clarity Recessed volume control knob External battery door Runs on (2) AAA batteries (included) Slim profile