J2 is the j series mobile and the mobile is best mobile in the world and there camera is soo clearity and front is also good and mobile colour is golden color and they have senser the mobile Android is Lollipop and the mobile warranty is one year and my favourite mobile is also j2 and the mobile is never hang an there ram is 2 GB I can suggest you please use Samsung galaxy j2 an there sound is also good this is a excellent mobile in the world.