All eight models in the new 2014 lineup of Pioneer single-DIN DEH receivers (and the double-DIN FX-X500UI) are able to browse media stored on a USB-connected Android phone with the aid of the media transfer protocol (MTP), which has been adopted by the Android operating system as of version 4.0 to handle all file transfers. (Older Androids made use of the same mass-storage protocol that USB drives do.) Once connected, the receivers will be able to browse and play back digital audio files stored locally.