The Sennheiser MX 55 Street 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. In addition, the headphones come with an ear adapter set with three sizes of exchangeable rubber pads (small, medium and large) - so you can adapt the size of the ear buds to your individual needs.

What's more, with the Sennheiser Basswind System plus these headphones have an extremely powerful bass response providing real listening pleasure on the go.