Oppo neo7 sound is superb with 3mm jack for headphone n speaker qulity is superb .its user friendly but its hangiing most of the time so im facing problem for it its ram is 1 gb n internal memory is 16 gb its good camera qulity is super with selfi camera.if you wan to buy oppo thn buy it for a camera not for a style n design its processor is quad core so its helpfull bettry gives good backup with use of gio 4g compare to mi 3s its not too good