5 of the best headphone upgrades

Audio Technica ATH-WS55i
£90, Audiotechnica.com
An excellent pair of on-ears for the bass loving iPhone owner, Audio Technica's 55is pump out the kind of bass that's weighty, chunky and deep, but not as overbearing as some on-ears.

The result? A pair of 'phones that bring full bodied delivery to the table that's rich, punchy and exciting. An undeniably satisfying listen, the noise-isolating 55is also also pack the very handy three-button, Apple-compatible remote.