Rosson Audio Designs 455 headphones

STYLE: OVER EAR, OPEN-BACK, CIRCUMAURAL DESIGN
TRANSDUCERS: 66MM PLANAR MAGNETIC 
FREQUENCY RESPONSE: 20HZ - BEYOND AUDIBLE RANGE
EARPADS: OVERSIZED SUSTAINABLE LEATHER-FREE WITH SOFT FABRIC INNER FACE
CABLE: 8’ 3.5MM CABLE + 1/4” ADAPTER
THD : <0.1%
IMPEDANCE: 29Ω
WEIGHT: 550-615G DEPENDENT ON MATERIALS AND FINISH

CASE: PELICAN STYLE HARD SHELL CASE WITH EVA FOAM INSERT WITH ADDITIONAL SPACE FOR ACCESSORIES