Samsung galaxy star duo s5282 is very good and perfect mobile for personal use. This mobile can use the every network in the word and sound quality is perfect for mp3 player and video quality is good and perfect.use 2g, 3g network in this mobile.display is very good for video playing and other purposes.hd video quality is the main advantage of this mobie phone. You can speak every were this phone is being very perfect for personal purposes.volume control is very good and casual.display have very good quality