Great headphones by Weile.For use in conjunction with your pc. Fantastic to use with skype in order to speak to friends & family or if prefered you could just listen to great quality music on your mobile phone or any other device that uses 3.5mm jack.
driver unit:Φ27mm
microphone unit:6 X5mm/58±2dB
impedance:32Ω
sensitivity:102dB S.P.Lat 1KHz
frequency range:20Hz-20,000Hz
maximum power input:100mW
cable length: about 2-3M