Extreme Isolation Headphones were invented by a studio session drummer for drummers, home studios, stage and studio musicians, and anyone who wants serious isolation! What makes them so extreme? Direct Sound usees specially designed earmuffs that passively attenuate surrounding sound by 29 decibels and custom fitted, high quality speaker assembly. They are designed to protect your eardrums from damage and improve your recording and performing! It's about time! For SOUND ENGINEERS to monitor the mixer board during live performances while isolating their ears from main speakers. For STAGE AND STUDIO DRUMMERS who want to hear how drums are being mixed without having head-phones at high volume. Allows STUDIO MUSICIANS to hear only the studio mix during recording - eliminating costly return trips to the control room. For STADIUM AND DOME EVENTS - listen to "LIVE" broadcasts at medium volume and block out most stadium noise while watching the game. For NASCAR SCANNERS - by using an inexpensive stereo to mono plug, you can plug into your scanner and have the best isolation available to monitor the pit crews and driver.