661120872009 85621 The low-profile E-Max hearing protection combines great circuitry with a low profile earcup that s 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 shooter s 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). 23NRRProduct SpecificationsPurposeHearing Protection ModelE-Max SeriesLow Profile Mossy Oak Type Electronic Color Camo NRR 23 dB Quantity 1 Pair Style Over the Head Battery AAA (2) Not Included 487200 661120872009