The Sony NWZ-A728 Walkman charger cable is used to connect to MP3 players and other video players to transfer videos or movies from PC to phones or from phones to PC. This usb charger cable is very useful in data transfer as well as charging the phones at home or office. The usb cable can be used for not only data transfer but also charging your devices using the pins adaptable to any device. These usb cables are very useful to efficiently charge and keep your batteries full in emergency situations. The sony mp3 charger cable is compatible to more than one device which is very useful if we want to charge 2 different devices at home or office. The sony charger cable is very durable and is made from strong wire material which is not easy to crack or break. This high-quality usb sony cable for the A / S / E / and X series Sony Walkman range of MP3 players, allows you to sync you Sony Walkman MP3 player for music and data transfers and also simultaneously charging the battery.