Bought 6 months ago on a whim (£129) and used on only a couple of occasions as I prefer my Grados. Very comfortable for long listening sessions and sound like a nicer Sennheiser 650. Details: Open studio headphone, equalized to meet diffuse field EQ requirements Robust spring steel headband Single-sided cable Soft headpad Gold plated stereo mini jack (3.5 mm) and 1/4" adapter (6.35 mm) Specifications: Transducer type Dynamic Operating principle Open Frequency response 5 - 35,000 Hz. Nominal impedance acc. to IEC 60268-7 250 Ù /System Nominal SPL acc. to IEC 60268-7 > 96 dB Nominal THD acc. to IEC 60268-7 < 0.2% Power handling capacity acc. to IEC 60268-7 100 mW Sound coupling to the ear Circumaural Average pressure on ear acc. to IEC 60268-7 3.5 N Weight without cable 250 g Yours for £85 plus P/P As new condition.