Karbon k9 smart’sounds are not very good his sound was lowest catagary I hear the songs is in week voice.i use this phone in calling video calling download games download apps and I used to songa download.his style and design are ok but his display and touch are not good display and touch after 2, 3 months are useless and is in not glass karbon k9 smart storage are good he has app notification karbon clinic karboon live smart search it look like a smartphone but he is not good I feel like my time is bad because I buy this mobile phone but somtime I like because his storage and I install many apps this phone Rs 3990 THANK YOU