I bought this mobile from ebay. before buying I watched many videos on youtube to know what are the PROS and CONS of this mobile .i found this mobile user friendly .it has one dual mic one is at the top on mobile and another one is below of the mobile .i think you will never find good mobile in this range .i got ANDROID 7.0 nougat update after four five later.its sound quality is very goodfront and back camera less satisfactory .but works well than the another mobile phoneI think you should buy this phone