The product of Amazon is Orignal 100 percent trustable my brother gifts me power bank purchase power bank from Amazon since past 6 month battery of power bank is now as usuall there is not any defects come in product and the best part of Amazon service is given discount prize always less than or some time equall than other shopping sites power bank work as usuall thanks Amazon giving me a good product there is a symbol indicatior in my power bank my power bank battery is 10000 mAh it’s work around on 2 days .and me and my whole family trust Amazon and we purchase every product from Amazon last month I was purchase 2 books of GK and competitive exam pricess less and packing quality is good