USB Data + Charger / Charging Sync ( USB to WM-port players ) Cable Cord For NWZ-S610 Series Sony Walkman MP3 Media Music Player ( WMC-NW20MU Model Compatible ) - 4 feet Black - Bargains Depot Sony Walkman MP3 Media Music Player ( WMC-NW20MU Model Compatible ) : NWZ-S610 Series Brand new and high quality USB data cable for Sony walkman Charge or upload your device through the USB port.Foil and Braid Shielding to reduce EMI/RFI Interference 1 Year Warranty; 30 Day Money Back Satisfaction Guarantee Depending on your device's specification, this cable may both sync and charge your device through USB port