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 Stereo Headset with Microphone OVLENG OV-L772MV 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 comfortableIdeal headphones to enjoy musicLow power consumption， plug and play， no driver requiredOutstanding quality， excellent and clear sound reproduction                                                            Specifications            Headphone    <br>Unit    Φ40mm (1.57in)    <br>Frequency    20~20000Hz    <br>Impedance    32Ω±15%    <br>Sensitivity    108dB±2dB    <br>Max.input Power    100mw    <br>Microphone    <br>Type    Conderser    <br>Unit    Φ9x7mm    <br>Frequency    50~1600Hz    <br>Impedance    1.2KΩ    <br>Sensitivity    - 58dB±2dB    <br>Dimensions    (7.87 x 3. x 9.65) " / (20 x 9.8 x 24.5) cm (L x W x H)    <br>Weight    11.96 oz / 339 g    <br>                                                            Package Includes            1 x Ovleng OV-L772MV Computer Headphone