These earbuds feature 3 inputs which makes them compatible with most mobiles devices. The tips included are a 3.5mm Aux Input, iOS Input, and a Micro USB Input. With the standard 3.5mm Aux Input, all you need to do is plug in the earbuds and the play your music. If the user has a new iPhone or Android device that no longer has the 3.5mm input. The user can use the iOS or Micro USB input to play their audio. 47" Cable length.