Hi guys ! So when I buy jbl T100A ear phones its look very costly because I have never use the branded one So I start using it. It has good volume good bass as well. After using it for 6 month there some problem in that is volume come up grom the one side. So very sson I go to shop where I purchased from I tell then the problem they dont even check it and change it. And give the brand new I was like wow ! ?? Now I everytime purchase jbl products. They awesome customer service !