Lost your original charger? This item is just what you want. You just need an extra USB charging cable (or sync cable for some devices) and plug in the adapter to charge . The adapter(s) have USB A female port to convert car power / AC power into Universal Serial Bus power (5V). So say goodbye to those bulky charger, you just need to keep some retractable sync/charge cables and these charging adapter. Black color ONLY. Please keep in mind that some marketplace sale will only have either car adapter or wall adapter! Here is the input and output of the adapters: Black Travel adapter: input 100-240V, output 5V 800mA. Black Auto adapter: input 12-24V, output 5.5V 700mA, red LED power indicator.