What's the most important thing to do after you god a Kanger product? To check its authenticity first of course, then how to check it? There is a simple way. When you get the package, please scratch the label on the box and then you'll see there would be a security code on it, then open this website: https://qr.szkanger.com/check/, and then type the security code, you can check whether you 've god a authentic one. And please always purchase at kanger.info, which is the offcial authorized Kangertech online store, all ot the products will be 100% authentic.