Please don't buy any product from www.bookmyoffer.com
, I brought the product Samsung/Mi 16800mAh Power Bank from bookmyoffer site, I got samsung 25000mAh power bank it is delivered after 30 days . when I plug to charge it will show some lights in the power bank. nothing is working other that that, torch is not working , mobile is not able to charge. finally I have broken the device. what I see inside is two dummy batteries and another one looks like battery. I don't know why the site is cheating the customers.