EMPIRE"s retractable 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 4 ft. retractable cord easily gets out of your way when unneeded by simply touching a button that"s on the charger itself. 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.