USB Cable For Sony NW-A800, NW-A805, NW-A806, NW-A808, NW-A808/S, NW-A820, NW-S603, NW-S605, NW-S703F, NW-S705F, NW-S706F, NW-S715F, NWZ-A726, NWZ-A728, NWZ-A729,NWZ-A815, NWZ-A816, NWZ-A818, NWZ-A820,NWZ-S739F, NWZ-X1050, NWZ-X1060 This USB data cable enables you to connect your device to your computer In order for your usb data cable to perform the above functions, you must obtain the required software independently Charge your device and transmit data at the same time.