Finally, a pair of in-ear headphones that will stay in your ear. These Sennheiser MX 55 VC Earphones feature the innovative holding Twist-to-Fit system that ensures the best possible fit for your ears. The key element of this headphone design is the additional holding mechanism in the outer ear - just give it slight twist and the headphones lock securely and comfortably in the ear.

But its not just down to the Twist-to-Fit system, the headphones also come with an ear adapter set that has three sizes of exchangeable rubber pads (small, medium and large) - so you can adapt the size of the ear buds to your individual needs.

These headphones aren't all about the fit either - they deliver a powerful sound with a punchy bass response, thanks to Sennheiser's Basswind system. And the icing on the cake is the volume control integrated into the headphone cable.