Featuring 'twist to fit' system for best fit, freatures Sennheiser Basswind system & delivers crisp punchy bass.
Stereo earphones with Twist-to-fit system and in-line volume control
Sennheiser Basswind System plus, for extremely powerful bass response
Innovative holding system (Twist-to-fit system) ensures best-possible fit
Accessories: ear adapter set, design parts and carrying case