Goal Zero Flip 20 21907 External Battery Bank, Charcoal Grey [Pocket-friendly, power ready] compact and portable 5, 200mAh (18.7Wh, 3.6V) phone charger with 2.1A USB output and 1.5A input designed to give your phone A quick recharge or boost A tablet. [No cable needed] built-in flip-out USB plug for tangle-free charging from any USB Port in about 5 hours. Charge the Flip and recharge your phone at the same time with unique pass-through power. [Pick your flip] solid Aluminum finish in multiple colors means you can find a flip that fits your style. [Battery level] easy to read LED battery indicator. Press and hold to view Battery level [Whats included] flip 20 power bank, micro USB cord, one Year Warranty, us customer support, User guide