Using these headphones is as easy as using most other headphones -- it's as easy as 1-2-3 actually:
1: Place them on your head so that the earcups cover your ears (the size of the headband is easily adjustable)
2: Orient them so that the cord comes from the bottom of the left-hand earcup
3: {to borrow a phrase from a popular type of air freshener} PLUG THEM IN, PLUG THEM IN!!! That is, plug them into a 1/8" female stereo phone receptacle on your Walkman, Ipod, ghetto blaster, or other audio (sound) source.
Lifted from the Skullcandy website about these headphones, comes this rather minimal set of specs:
Impedance
35Ω (ohms)
Sound Pressure Level
105 dB (1mW/500Hz)
THD
less than 0.1% (1mW/500Hz)
Weight (without cable)
approx. 180 g