Whether you are using the computer for Internet phone call， game， education laboratory or video conference， you need a high quality stereo headset with microphone! We strongly recommend this OV- Q3 USB Jack Stereo Headphone Headset with Microphone to you. It has the characteristics of binaural design and adjustable volume. With clear sound and stereo headset， you can enjoy high quality voice and improve auditory art. It is an ly perfect audio device of computer. In addition， it is light weight and easy to carry.                                    Features            Adjustable headband， wear comfortableHas the function of canceling noiseHigh quality headphone for clear voiceSoft cushion earplugs for maximum comfortHas volume control in line                                                            Specifications            Speaker Diameter    40mm    <br>Impedance    32 ohms    <br>Sensitivity    104dB， SPLAt 1kHz    <br>Frequency Response    20Hz-20， 000Hz    <br>Max. Input Power    120mW    <br>Cord Length    Approx. 150 cm / 59.05 "    <br>Plugs Type    USB 2.0    <br>Weight    393 g / 13.86 oz    <br>                                                            Package Includes            1 x OV-Q1 USB 2.0 Jack Stereo Headphone with Microphone