Sennheiser HD 660S2 Audiophile Headphones noise-isolating High frequencies are handled by

High frequencies are handled by the proven SWFK-31736 driver

Ambient Aware mode for situational awareness while on the go

Tuned to unleash the potential of your Multi-brid IEMs

but not 100% eliminates channel Imbalance caused by clogging

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 High frequencies are handled byDive 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