Massdrop x HIFIMAN HE-4XX Planar Magnetic Headphones, Black ———— Contents: Headphones, Cable, retail box. Used - Tested Working Condition. Still in good condition. ————- Many headphone companies have tried their hand at planar magnetic drivers, but none have done it quite like HIFIMAN. The result of founder Dr. Fang’s PhD research at Columbia University, its driver technology has landed the company in TIME, Forbes, and CNET’s “The Audiophiliac,” and won it the CES Editors’ Choice Award. Now, that tech is available at an unheard-of price in the