Urbanears - The Zinken is a noise-isolating head-phone designed with performance and durability. The new TurnCable feature allows you to swap between a 3.5mm and 6.3mm plug. It also contains the Zoundplug feature-which allows instant music sharing- and comes equipped with a microphone and remote compatible with the Iphone, Blackberry, HTC, and other mobile devices. Besides these features, the Zinken is also collapsible for easy minimal strorage. Completely detachable, the TurnCable comes with two plugs, one on each end - there"s a 6.3mm plug on one end for DJ sessions and a 3.5mm plug for music listening on the otherZoundPlug for instant music playerWith a built-in microphone and remoteCompatible with unprotected 3.5 mm standard such as iPhone, Blackberry, HTC and more Technical Specifications:40 mm handmade driversFrequency Response 20Hz-20kHzImpedance 85ohmSensitivity 98dBMax Input Power 50mW