Battenfeld Caldwell E-Max Low Profile Electronic Hearing ProtectionThe 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). Features:True stereo sound for better localizationLow Profile earcups reduce contact with gun stockPadded adjustable headbandVolume control knobPower indicator lightFold compactPower Source - 2 AAA batteries (not included)