I bought these headphones last year and within 3-4 months they just stopped working. I was not even a power user but still they somehow did not worked.
I went to the service center and they just told that drivers are not working and cable also needs to be changed which will cost more than the price of the headphones.
therefore I did not have them to repair as it was not a good deal for me. I threw them after that as they were not just use less. for others I must say that these are cheap and also branded by Phillips but buying these is not a good option. you can opt for some other headphones or just save some extra money to buy good quality one.