Xtreme XBB8-0145-BLK is a portable power bank with a 5000 mAh capacity, designed to charge electronic devices on the go. It features two USB ports, allowing you to charge two devices simultaneously. The power bank has four LED indicators to display the remaining battery level, with each LED representing 25% of the total capacity. To charge the power bank, connect it to a computer, car charger, or AC home charger using the included micro USB to USB cable. The charging time for the power bank is between 3 to 4 hours.