Beyerdynamic T51i

3-button Apple remote control and microphone for smart phone and media playback, Apple compatible Tesla technology with highest efficiency with excellent isolation for undisturbed listening and communication Powerful sound quality with brilliant treble and deep bass reproduction Swiveling ear cups 90 Degree for easy storage Includes nylon carrying case, 1/4" jack adaptor, In-flight adaptor, and adapter for non Apple compatible devices