QuietPoint active noise-cancelling technology reduces environmental noise by up to 95%Tri-Level Cancellation - 3 noise-cancelling modes customize performance for airplane, office, & study40 mm drivers for crystal-clear high-fidelity audio reproductionUse for MP3, iPhone/smartphone, CD, DVD & in-flight entertainmentFold-flat designed with included hard case, battery, adapters & 2 cables (1 with inline control/mic)
