The newly designed Smaller Electronic Hearing Protection comes with a 23 dB Noise Reduction Rating (NRR) for maximum hearing protection on the range. With a padded headband, comfortable ear cushions, and low profile ear cups for an uninterrupted cheek weld, these are the most comfortable and functional electronic ear muffs available. When not in use, the Youth E-max muffs fold compactly in your range bag for a smaller footprint. Features: 23DB NOISE REDUCTION RATING - HIGH QUALITY STEREO SOUND LOW-PROFILE DESIGN FOR UNINTERRUPTED CHEEK WELD - COMPACT FOLDING DESIGN EASY TO USE PUSH BUTTON VOLUME CONTROLS - ILLUMINATED ON/OFF INDICATOR - AUTO-SHUTOFF (4 HOURS WITHOUT TOUCHING CONTROLS) RUNS ON 3 AAA BATTERIES (INCLUDED) - COMPATIBLE WITH CALDWELL'S RECHARGEABLE LITHIUM-ION BATTERY PACK (SOLD SEPARATELY)