First of all, I would like to tell that I just used this phone for only 4 day, the fifth day, I changed the phome because this phone hangs a lot, it runs slow than a turtle, the camera got blur whenever I clicked pictures, also the sound of this phone is too low. I wonder how companies can manufacture such type of mobiles. The battery doesn’t run more than half day, even when not used. This phone is not at all good. I prefer to buy other handsets rather than samsung s duos. The ram also is too low and processor works too slow.