This PC Computer Headphone Microphone Headset MSN Skype Talk offers great bass and treble sound quality. Adjustable head band， flexible microphone and soft ear pads offers comfortable fitting. Skype Headphone features with adjustable volume control on the cord.                                    Features            Bass beat vents deliver dynamic bassLow power consumption， plug and play， no driver requiredA comfortable feeling with flexible micro - arcInline adjustable volume for both microphone and speakers                                                            Specifications            Frequency range    20HZ - 20KHZ    <br>Impedance    32 Ohm    <br>Maximum power input    100 mW    <br>Sensitivity    91dB S.P.L at 1 KHZ ± 2%    <br>Plug    3.5mm stereo    <br>Length    1.8m ± 3%    <br>Color    Black    <br>                                                            Package Includes            1 x Black PC Computer Headphone Microphone Headset MSN Skype Talk