Sennheiser HD 660s Audiophile Headphones (B-Stock) - Discontinued headphone USB The T2 Plus has been

The T2 Plus has been tuned to refine the sound characteristics of its predecessors

It does not excessively change the distance of vocals

users will now be able to enjoy full access to Polar’s elite biosensing capabilities and data analytics ecosystem by using Polar Flow as a training app

set your Smart Ambient settings and much more

10-minute charge

Sennheiser HD 660s Audiophile Headphones (B-Stock) - Discontinued headphone USB The T2 Plus has beenHD 660S The perfect blend of power and control. The powerhouse open back headphone Connects you to the deepest corners of your music collection. Hi fidelity sound Open back design 42mm transducers Luxurious comfort Detachable cable A Direct Connection To Your Music Known for their engaging signatures and liquid smooth response, HD 660S predecessors HD 650 and HD 600 shattered performance barriers in the audiophile headphone category. The HD 660S