Denver PBS-10003 is a portable charging device with a 10000mAh lithium-polymer battery that can charge two devices simultaneously. It features dual input ports (Micro USB and Type-C) and dual output ports (USB-A), allowing you to charge a variety of devices, including smartphones, tablets, and other USB-powered gadgets. The device has four LED indicators to display the battery level and charging status. It supports fast charging and can fully charge most smartphones in about 6 hours when using a 2A AC adapter (not included).