Direct Sound EX-25 headphones are the only headphones on the planet that have dynamic closed-back speakers within a closed back isolation chamber. Maybe that's what gives EX-25's extreme isolation.
EX-25 extreme isolation headphones applications:
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 headphones 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 listening to the show or game.