Nokia 101 is a worsest mobile and it is so bad mobile.iys only mp3 mobile and its speaker is so bad.apeaker sound is so bad and crowing sound.its jack is also no good.sometime jack will not supported.iys keypad is so hard and not easy to type.its display is also no good, its diplay nright is not adjustable.its battery capicity is good but iys take so long time to charge.it only support mp3.its charging pin is different to that why it so diffcult to charge, keep inside a secial charge for mobile.it is no a reliable mobile and also not a duraliablity mobile.it battery back is good and give large charging back up.its price is so large as compare to other mobile