Use the power socket in your vehicle to charge your micro USB compatible device and another phone or tablet with the Cellet High Powered Micro USB/Extra Port Car Charger. Equipped with 10Watt (2.1Amp)atts, it can charge up to two devices simultaneously. The convenient extra micro USB port can be used with any USB cable. Featuring an extendable 6 foot coiled cord and smart IC technology, the charger allows flexibility and no overcharging will occur.