Sennheiser HD 660s2 Audiophile Headphones (Open Box) overnight combined with multiple processes such

combined with multiple processes such as polishing

62 mm Wide

Input AC 100 -240VAC Output 5V/2

Its drivers are engineered with our award-winning Fluxor magnets and updated Fazor waveguides along with our new Patent-pending Parallel Uniforce™ voice coils

Sennheiser HD 660s2 Audiophile Headphones (Open Box) overnight combined with multiple processes suchDive deeper into your music. Enjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort and now, extended sub bass for a deeply moving experience. Extended sub bass Natural, warm sound Comfortable open back design Your new desert island headphone Every high end headphone has its own unique personality. What if you could only own one? Ever felt goosebumps from sound so