Sennheiser HD 660s Audiophile Headphones (B-Stock) - Discontinued bluetooth then look no further

then look no further

and when combined with how open-backed headphones usually look

44 oz) Power System 5V/1A or 5V/2A Qi certified charger Battery GO pod 180mAh

Portable case

Standard equipment on all series of the following headphones: RS1

Sennheiser HD 660s Audiophile Headphones (B-Stock) - Discontinued bluetooth then look no furtherHD 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