I have been using this karbonn phone for almost 3 years now and not single fault I have discovered in this awesome karbonn brand phone . sound reception is clear and good. It works on android 4.4 kitkat version so it is a user friendly phone . Style and design of the phone is best thing in the phone. You can download any latest app on this phone because it works on one of the complete version of android . It is very cheap phone compairing with the features that karbonn had given in this phone so it is completely worth your money.