I have Celkon A15 campus since 3 months Celkon A15 Campus Is one of the product from celkonCompany Good features mobile if you want to play HD videos Because it has hanging again and again and also it has 256 Lo Ram The internal memory is 512 MB Which is not useful to download three or four Apps It has 3.2 MP poor rear camera one of the rose thing 3 MP front camera it is not comfortable to video call I suggest to all don’t go Buy this mobile I am very sad to buy this phone because it hang very much Once a day I have charge this phone Hundred percent And keep in my pocket After 1 hour I seen my mobile It battery decrease And come on 90% That means Its battery drains