The £149 you’ll splash out on the Klipsch Custom-3 buys you exclusive KG723 tweeters, KG731 woofers, and a patent-pending electro-acoustic crossover system to deliver a “studio-reference acoustic experience”.

This model comes in a black soft-feel paint finish with copper accents and includes a vinyl carrying case that will also fit an 80G iPod.

The £99 Custom-2 in-ear headphones employ exclusive KG534 dual-balanced armatures in each ear for an enhanced full-range acoustic experience, with “crisp highs and deep lows”.

This model comes in a black soft-feel paint finish with silver accents and also includes the 80G iPod carrying case.

The £69 Custom-1 in-ear headphones employ exclusive KG332 balanced armatures for “deeper bass, a robust midrange, and clearer highs”.

This model comes in a black soft-feel paint finish with off-white lettering and includes a compact vinyl carrying case.

The Custom-1 pack includes five sets of ear gels and a cleaning tool; Custom-2 users add an airline adaptor; while Custom 3 users also add a quarter-inch adaptor.

Klipsch Custom-3 and Custom-2 in-ear headphones come with a carry case for an 80GB iPod