There are two Input ports; Micro USB Input It has a built in digital display to find the status of charge ensuring you exactly know the juice left in the power bank [10,000 mAh Li-Polymer Powerbank]- It also has a built-in 10,000 mAh Powerbank for charging any smartphones, tablets, mp3 players, camera, etc [6-Level Protection]- No more worries of short circuits, current and voltage overloads and overheating or wrong insertion related problems. Fitto is BIS certified [Compact Size]- This battery bank has nice rugged and compact body with gloss finish. It’s easily carried in your pockets without any visible bulge. It weighs around 160 grams Built-in LED Display displaying battery percentage and charging status