Massive 30-hour playtime. Pillow-soft headband features Faux Leather and Cloud Foam cushions for ultimate comfort. Adjustable headband to fit all sizes. Custom EQ 3 Sound. Signature, Balanced & Bass Boost to personalize music without an app. Incredible sound with C3 (Crystal Clear Clarity) Technology and 40 mm drivers. Foldable for easy storage/travel. Universal mic goes with Android and Apple. 3 feet charging cable. Power Source: 3.5 mm Audio. Sold by each.