BirkSun 5,000 mAh Air Power Bank, Silver Simple to use and has 2 USB ports allowing 2 phones/tablets to be charged simultaneously Charges phones and tablets at the same exact speed as wall outlet Nearly identical dimensions to that of an iPhone 5S making it incredibly sleek and able to easily fit inside your pockets Unique to BirkSun battery packs, the Air battery can store power from both wall outlets and BirkSun solar packs Includes a 4 LED light power meter indicating the exact amount of power inside the battery at any time