A great trendy headset.  

Features:
Over Ear Headphone
Adjustable Headband
Awesome Clarity
Compatible with iPod, iPhone, iPad, and MP3/MP4 devices
Specification:
Driver Unit: 40mm
Impedance: 32ohm
Sensitvity: 95db 3db
Frequency Response: 20-20khz
Cord Length: 1.5m approx.
Plug: 3.5mm