8 of the best noise-cancelling headphones in the UK

It’s no secret that everyone and their mother has heard of Bose headphones. People love them because the active noise cancellation is pretty much best-in-class, not to mention they practically invented the noise-cancellation headphone category.
There are two versions of this pair of in-ear headphones by Bose, the standard ones pictured above and the QC20i model that comes with two additional buttons that work with iPhone music control and Siri voice commands. 
At a glance, the Bose QC 20 headphones appear to be like any other pair of regular earbuds, but if you take a closer look, you’ll see a few differences. There’s a control module that allows you to turn the noise cancellation on or off and they have a built-in rechargeable battery that provides up to 16 hours of listening time.
You can use the noise blocking features to keep ambient noise at bay until the battery dies, after that, they function pretty much like regular headphones. To make sure you know how much juice you have left, Bose included a battery indicator light next to the power button. Each of the earpieces has two tiny noise cancellation microphones built inside. While noise cancellation mode is active, all four of these mics pick up external sound to determine the proper amount of low tones required to tune it out. By pressing the Aware button on the remote, you can allow some of the outside noise in, perfect for when you quickly what’s going on. 
65% of Amazon reviews are five stars. User Mark Chisholm writes:

Firstly, they are really comfortable to wear even on a long flight. They fit perfectly despite the ear buds being odd shaped. Clearly a well researched and considered design for the human ear. When you first push them in think that they are not secure because the pressure is so low compared to a more conventional pair of ear buds but, in fact they are very solidly in place despite the initial feeling. Sound quality is superb. Really superb for in ear items. Deep base and a great soundstage to use the poncey kind of gobbledygook used in What HiFi. Simply put I haven’t heard a pair of in ear speakers sound so good full stop.