These 4XEM Apple Original Earphones with Remote and Mic controller take the acclaimed regular Earphones and add a control capsule. Control capsule, located on the right cable earpiece, includes a microphone and three buttons. Remote and mic are supported only by iPod nano (4th generation and later), iPod classic (120GB/160GB), iPod touch (2nd generation and later), iPhone 3GS, iPhone 4, and iPad. The remote is supported by iPod shuffle (3rd generation and later). Audio is supported by all iPod models. Requires software version 1.0.3 for iPod nano (4th generation), 2.0.1 for iPod classic (120GB), and 2.2 or later for iPod touch (2nd generation). 4XEM gear is respected industry wide for its high performance, premium quality and durability.