I am using these Sony headphones since 1 year. The quality of sound it provides, it Is excellent. it has not noise reduction that is little dis-appointing according to prize, but quality of bass and pure sound u can not find anywhere except these headphones. When we talk about prize, it I little more but considering performance, it is suitable.well, it runs in all smartphones as well as laptops.so I recommend these Sony headphones to enhance your music listening experience.