EMPIRE"s retractable USB data cable provides the ability to charge (device must support this function) and sync your device to your Mac or Windows PC. The cable offers error-free data transmission of contacts, music, ringtones, and other types of media at fast data transfer speeds. The 28" retractable cord easily gets out of your way when unneeded. Devices that use USB for power don"t need a separate power supply, conserving space and keeping power outlets free. Software and USB drivers are not included. EMPIRE"s car charger keeps your devices battery charged on the go when plugged into any 12V cigarette lighter socket. It features an intelligent IC chip that helps prevent your device from overcharging, which could cause damage to it. The 5" coiled cable allows for flexible and convenient placement of your device when it"s plugged in. Small enough to fit into a bag or purse, you can conveniently bring this along wherever you may be traveling to. Charging time varies depending on battery size (mAh capacity). Charging port on device may differ in shape from charging tip, depending on phone manufacturer.