Offer this perfect holiday gift to your clients! Get a set of this Portable USB Car Charger with Split Ring attachments. It is the perfect present for people who are always on the go! Let them charge their USB powered devices conveniently. This charger is compatible with most standars cigarette lighter ports. It has an input power of 12-24 volts and an output power of 5 volts to 1 amp. It also features a hinge cover that shield the USB port when not in use. Get a set now!