Sennheiser HD 660S2 Audiophile Headphones noise-isolating Even the crossfeed function is

Even the crossfeed function is generated by an analog filter circuit

A full range 5Hz-20kHz frequency response is delivered via air conduction from the dual W9+ subwoofers and 5 balanced armatures while imaging

Ambient Aware mode for situational awareness while on the go

and skip tracks forward and backwards and even activate the voice assistant on your Bluetooth-connected smart device

Sennheiser HD 660S2 Audiophile Headphones noise-isolating Even the crossfeed function isDive 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