Strengthens the security features in a healthy 82 dB – the technological answer reaches back to passive hearing protectors if noise, 82 dB sound amplifier Carrier important communication can hear the alarm / warning signals that employees cast Directionally placed stereo microphones strengthen and to enhance sound for more natural hearing Ultraslim, lightweight design, ear, earphones with a low-profile cut-out allows for the complete liquidation of stocks by fire, eliminating interference when shooting headsets hunter green leatherette Contemporary design Convenient power folding easy storage / volume controls Auxiliary input allows connection of an external MP3 player or other audio device for playing an extra in the snap-in ear cushions make replacement quick and easy field Includes 2 AAA batteries included