MOMENTUM 4 Wireless 80th Anniversary Special Edition Refurbished compatible-with-hd-450-bt

MOMENTUM 4 Wireless 80th Anniversary Special Edition Refurbished compatible-with-hd-450-btFirmware and software updated: Enjoy a smoother, and more reliable user experience, incl. an ANC off switch in the Smart Control Plus app, and a persistent off switch for the touchpad. Maximum audio resolution with Sennheiser Signature Sound: Enjoy premium music quality all day long thanks to the headphone's audiophile inspired 42mm transducer system and aptX Adaptive. Personalized sound via the Sennheiser Smart Control App: Adjust the sound to your

with the BTD 700 Bluetooth® USB Dongle

microphone

Wide soundstage from ergonomic acoustic refinement (e

and pairing with up to 8 devices

Closed-back earcups

Upgrade your daily audio—input and output—without compromise

The HD 660 S is an elegantly designed piece of high-quality engineering that indulges the demanding listener with aural precision and great wearing comfort

Its unique Speech Intelligibility function increases speech clarity at the push of a button

Transducer principle: Closed-back single dynamic driver

control and personalize with the intuitive Conversation Clear app

Greater wearing comfort: An even lighter headband with reduced clamping force

the AMBEO virtualization technology creates a virtual speaker setup that delivers the maximum possible 3D immersion a single compact device can offer