Gearonic Adjustable Circumaural Over-Ear Headphone with Built-In Microphone iPhone iPad Android iPod MP3 MP4 PC - Non-Retail Packaging - Silver Supports iPods, MP3/MP4, iPhones, smart phones, iPads and most devices with standard 3.5mm earphone jack (not including notebooks and PCs) Comfortable over-the-head, around-the-ear wearing style ensures noise blockage, low song leakage, and great audio quality & Adjustable/bendable headband made of high quality durable plastic material Soft leatherette padded ellipsoid ear cushion size: approx. 3.75 in x 3.0 in. Built-in microphone in included audio cable. Cord length: approx. 45 in. Product of GEARONIC TM, Trademark Registered.