Black 2-In-1 USB Data Hotsync & Charging Cable for Sony Walkman 4GB 8GB Video, S736 S738, Walkman 8GB Video, S638, Walkman 4GB 8GB Video, E436 E438 NWZ-A726 A728 A729 A815 A816 A818 S615 S616 S618 S716 S718 E436 E438 S736 S738 Series MP3 Player Brand New Generic Bulk Package 2-In-1 Features: Hotsysnc & Charging. Software & technical support not included.