This power bank can charge two devices at the same time through the dual USB port. The maximum current output is 2.1A. This battery charger has dual input options Micro USB and Type C ports. One Input with 2A Type-C and the other with fast charging 2A Micro USB port. It has a durable 20000mAh battery. Its Li-Polymer battery has high efficiency and charging conversion rates and is much more reliable and safer than non-branded Lithium-Ion batteries. It features 6-LEVEL PROTECTION i.e. get protection from short circuits, current & voltage overloads, and protection against overheating and wrong insertion. INDO 20X is BIS Certified with 12 months warranty. This battery bank is compact in size and lightweight (380g). It can be easily carried in pockets or hold in the hands. It has a wake-up button & LED Indicator. It comes with 1 charging cable. It is made from ABS plastic. It is compatible with devices like iPhones, all android devices, Tablets, Cameras & iPods, headphones, etc.Its power source is AC Adapter. Keep it safe from water.