About this item Active Noise Canceling (ANC). Lose yourself, not the music. Leave it all behind with Active Noise Canceling. Shut off the noise of a train or busy office at the touch of a button. If you’re out and about, you can listen to your music and stay tuned to the noise of the street in Awareness Mode. 30 hours play time or talk time (25 hours with ANC on). On any trip, these headphones are up to the task. A single charge takes just 2 hours. You get 30 hours play time (or talk time) with Active Noise Canceling off, and 25 hours with it on. 40mm neodymium acoustic drivers for highly detailed sound and strong bass Hi-Res Audio. Hear every detail. Twinkling pianos. Blistering rock. Whatever you love, Hi-Res Audio headphones let you feel the full impact of every note. When wired to a Hi-Res source via the included 2.5 mm to 3.5 mm cable,, you’ll get the full benefit of lossless audio that’s recorded at a higher sample rate than CDs’ for a brilliantly lifelike performance. Touch control. Swipe, tap, and press for easy control. Control volume by swiping up or down on the ear-housing touch control panel. You can activate or deactivate Active Noise Canceling with a single tap. Or engage Awareness Mode to hear more of the world around you while the music keeps playing..Built-in mic with echo cancellation for clear audio. No more of those annoying echoes when you are talking on the phone