Walker's Game Ear RSEM COR Razor Slim Electronic Muff Coral Thermos Designed to allow antenna installations Popcorn Maker Designed to allow antenna installations on vehicles where other mounts may not work 1 x 30a fuse Protect your hearing at the range with the Walker's Razor Slim Protection Muff Includes audio input jack and recessed volume control knobs Features a comfortable headband with metal wire frame that folds for easy storage Operates on 2 AAA batteries (included) Composite housing gives you more effective sound dampening Independent volume controls give you greater control over the sound Features full dynamic range HD speakers for clear balanced sound with sound activated compression reaction of 0 02 seconds Boasts a noise reduction rating of 23 dB with 2 omnidirectional microphones Low noise frequency tuned for natural sound clarity