Karbonn A2 + is android phone. This sound is good but no long time. Its camara is too bad as this sound very bad camara and picture quality is too bad. And no support 4g in this phone. Very important its look toi oldest. And bo use for long time. I usage inly 5 to 6 months and its hang, auto switch off, sound high and low automatically, and call received problem, etc. If call are receiving than the phone are hang. And very tried to receive call but its hang_ up automatically. And no more latest features ib this phone.