The NW-A55L offers features only unlocked by two specific pairs of Sony headphones. Connect the IER-NW500N earbuds, and noise-cancelling (to block out external sounds), an ambient sound mode (to allow ...

Why you can trust What Hi-Fi? Our expert team reviews products in dedicated test rooms, to help you make the best choice for your budget. Find out more about how we test. In the six years since Sony ...