Everything off this mobile is very good I have so I can tell about his fetures and the best feture off it is second speace he is the hidest system of his mobile like two mobile in one mi note 4 and his gold color ij febulas and fantastic and most important his bettry life is very very good 4100 mh gays I say u all who look my review please use this mobile and u have any problem in your mi mobile just comment me I have solve your problem and if u new users for mi and want to know anything just coment me I tell u about all this product.????????????