This is a Ideal fashionable multimedia Headphone with Microphone! It can adjustable headband gives you comfortable wear feeling， with the function of noise cancelling and omni-directional microphone for clear voice pick-up. You can enjoy the maximum music experience with this headphone.                                    Features            New and high qualityAdjustable headband， wear comfortableOmni-directional microphone for clear voice pick-upSoft cushion ear cup for maximum comfortRoHS available                                                            Specifications            Speaker Diameter    1.06"    <br>Impedance    32 ohms    <br>Sensitivity    105 +/- 2dB， S. P. L. at 1kHz    <br>Frequency Response    20Hz - 20000Hz    <br>Max. Input Power    100 mW    <br>Cord Length    Approx. 78" - 86"    <br>Plugs Type    3.5mm stereo    <br>                                                            Package Includes            1 x Ovleng OV-L900MV Headphone with Microphone