Sennheiser Momentum 2.0 On-Ear for Apple Devices - Brown Closed back, on-ear model provides noise isolation and listening comfort in a compact, lightweight design.Connectivity Technology: Wired Made For iPod/iPhone cable with integrated 3 button smart remote and microphone Sennheiser engineered 18-ohm transducers deliver wide frequency response and high output levels when connected to portable audio devices Foldable stainless steel headband makes it easy to pack and store so Momentum On-Ear can travel with you. Two year warranty when purchased from an authorized Sennheiser dealer