This Somic G927 7.1 Surround USB GamingStereo Headphone with Microphone is equipped with 7.1 simulated surrounding sound system torestore optimized and smooth sound effects. With its elegant appearance and exquisite workmanship， it is well received by users. Somic G927 is equipped with high performance chip to achieve high-quality tone and create virtual surround and give you amazing realistic feeling. With advanced technology， it provides you with high definition and high-fidelity tone quality. What is more， ergonomic and humanized design enables you to wear comfortably for a long period. The optimized earpads provide hours of gaming comfort to you. A perfect headset for you!                                    Features             A 7.1 surround game headphone with remarkable active noise reduction function for effectively isolating noise<br> USB headphone is equipped with a cool honeycomb-type indicator， and it is convenient to control microphone and volume<br> Soft earmuffs and adjustable hinges for comfortable wearing<br> High quality and fashionable appearance<br> With independent USB sound card<br> Ultra strong stereo positioning<br> Ideal for internet chat， VOIP (voice-over-IP)， computer， gaming， etc  <br>                                                            Specifications             Color     Black        <br> Microphone Dimensions     (0.24 x 0.2)" / (6 x 5)mm (L x W)    <br> Directivity     Unidirectional        <br> Impedance     2.2kohm    <br> Sensitivity     -38dB ± 3dB        <br> Driver Diameter     1.57" / 40mm        <br> Impedance     32ohm    <br> Frequency Response     15Hz - 25kHz        <br> Sensitivity (S.P.L)     98dB ± 3dB            <br> Plug     USB    <br> Cord Length     Approx. 110.24" / 2.8m     <br> Headphone Dimensions     Approx. (6.69 x 2.76 x 7.48)" / (17 x 7 x 19)cm (L x W x H)     <br> Headphone Weight     Approx. 10.62oz / 301g     <br> Package Dimensions     (9.65 x 8.86 x 3.54)" / (24.5 x 22.5 x 9)cm (L x W x H)     <br> Package Weight     Approx. 17.39oz / 493g      <br>                                                             Package Includes            1 x Somic G927 Headphone<br>1x CD<br>                                                            Extra Info            Note:<br>A CD driver for 7.1 surround effect. Please connect the earphone (usb port) with computer before you install the driver; for next time use， please plug into the same usb port. If you want to plug into other USB port， driver need reinstalling.