I have used it for 1 year. The main case is okay, but the two ear pieces are damaged, so I am selling it. It was bought from Malaysia, 100RM quality. The battery backup is very good, you can charge it 3 times fully. If you want to see it after 100% charging, you have to come to Jawleshoritola. If you don't want to come, I can send it via parcel. You will get the full box, no problem.
(The quality will not be bad, Insha'Allah)