Widely compatible: with a flexible and durable 47 inches braided cord and sturdy 3. 5 mm stereo Plug. Will not kink, twist or break under normal use. Use with all your favorite devices like cellphones, laptop, computer, MP3, MP4 and other Audio devices. Noise isolation: full-sized, on-ear construction isolates from outside noise so you can hear the deep bass, and crisp midst and highs of your upcoming track. Adjustable hinge: the adjustable headband gives your headphones some impressive flexibility so they can adapt to the shape of your head for a perfect fit. Hands-free talking and volume control: the built-in mic, remote and volume control lets you pick up calls and skip between tracks without missing a beat. Collapsible feature: take your headphones wherever you go. Just fold them up, twist up the cord, and be on your merry way.