This retractable car charger is compatible with the following Samsung models : Galaxy Admire 4G / SCH-r820 Galaxy Axiom / SCH-r830 Plug it into your car cigarette lighter. Great for travelers to recharge their cell phones on the go. Features : Universal Vehicle Lighter Adapter (12 ~ 24volt DC). Fits in your car cigarette lighter socket. High performance charger. Convenient cable management with cord wrapped inside the charger. Easy and convenient to recharge the phone battery in a vehicle. Electrical fuse with overcharge prevention for safety. LED charging indicator. Allows you to talk and charge your phone at the same time.