I had purchased JBL C100si red color variant from Amazon almost a year ago. As we all know JBL is one of the renowned company interms of headphone quality. Initially I just loved the product it is a in the ear headphone with built in mic in it. Ear tips are very soft even when I used it continuously for an hour it won't cause any pressure in my ear. I won't say it comes with noise cancellation but it's really smooth light weight comfortable.
Now the problem starts after 6 months, as it is not a flat wire which is big drawback of this headphones it starts getting tangled and wire rubber quality is so poor it's started tearing from different portion. Also the mic stopped working after sometime. After a after a year and two months its inner wire also broke and it's stoped working.
Paying almost 700/- for this headphones I at least expected it to last for two years but product longevity is really poor. I would rather go for Boat headphones which are less costly and comes with flat wire which increase the product longevity.