open studio headphones
circumaural
All metal hinges and bow for maximum durability
foldable construction for easy transport
frequency range: 5Hz to 28kHz
sensitivity: 110 dBspl/V
THD (@ 1kHz): <0.1% 
impedance: 25 Ohms
nominal power handling: 150 mW
incl. detachable cables (3 m and 1.2 m)
connector plug: 3.5 mm incl. adapter to 6.3 mm
dimensions: 200 x 170 x 85 mm
weight (without cable): 310 g