JBL is a USA based brand which is renouned all over the world for its sound based products. This earphone, the JBL C100Si is powered by HARMAN. The earphone is highly treble based. So people who loves treble this is the best choice. Bass freak people do not get disappointed. If your phone supports equilizer, boost you audio with high bass and this earphone would also be you first and best choice. So overall, this earphone would astonish you with its sound quality and output. The earphone has noise cancellation which makes it the best earphone in its price segment. The earphone is priced under Rs650. It has a mic for call and voice recording and also a single button with multi-functionality like pick and hang up calls, changing audio tracks, pause and play songs and volume up and down. The sound does not get distorted at full volume. It has a 3.5mm audio jack which is gold-platted. The jacks is partially tangle free which means it does not get tangled easily. It is an in-ear rubber bud earphone which is very comfortable to the ears. The earphone comes with 3pairs of earbud that is small, medium and large shaped buds. Overall, I would recommend you go for this earphond. There is no other earphone in this budget that is as good and reliable as this one.