Feel the rhythm with the MDR-V55 studio monitor DJ style headphones. Outfitted with 40mm closed type driver units, these headphones deliver just the right balance of rigidity & response for balanced audio reproduction while neodymium magnets provide rich bass & clear mid-range response. in addition, a slim, swivel folding design with reversible earcups make these headphones ideal for listening flexibility & easy portability. Slim, Swivel Style The slim, swivel folding DJ style with reversible earcups are ideal for listening flexibility & easy portability. Rugged Cord A rugged, flat Y-type design makes for tangle-free ease of use. Sound Story Proven 40mm Closed Type driver units provide just the right balance of rigidity & response for balanced audio reproduction time & again? Power Input Resists high-power input, up to 1, 000m W Neodymium Drivers Neodymium magnets provide rich bass & clear mid-range response.