The low-profile E-Max hearing protection combines great circuitry with a low profile earcup thats ideal for shotgun shooters and action shooters. The two microphones in the E-Max amplify sounds below 85 decibels which amplifies normal communication range commands and environmental sounds. Above 85 decibels the microphones shut off for a split second to protect the shooters hearing.Two microphones one in each cup give the user true stereo sound and allow the user to identify the directional source of a sound. Includes an integrated audio input jack allowing music to be played. Runs on 2 AAA batteries (not included). 23NRR - Mossy Oak Break Up Camo finish - True stereo sound for better localization - Low Profile earcups reduce contact with gun stock - Padded adjustable headband - Volume control knob - Power indicator light - Fold compact