Specifications:Condition: Brand NewMaterial: sponge + PVCColor: BlackFrequency range: 20 Hz - 20 kHzImpedance: 32 ()Sensitivity: 110 (dB)Distortion Rate: 0.1%Speaker diameter: 30 mmCable length: 2 mSystem support: Win7 / Win8 /Win8.1 / Win10 / XPConnector type: USB 2.0Wired control design, easy control of the microphone, volume up / down and sound on / off.The elastic headband and the soft, breathable sponge earmuffs guarantee a long wearing comfort.True plug and play, just plug it into your computer to use. Suitable for USB enabled desktops / PCs / laptops etc.The flexibly adjustable omnidirectional microphone can reduce background noise and enable clearer communication.30 mm driver units of the headphones offer 3D surround sound effect and super bass for an even more intense listening experience.Package Included:1pc x USB Computer HeadsetNotes:Other accessories demo in the picture is not included.Due to manual measurement, please allow size differences about 1-5mm.Due to the light and screen setting difference, the item& 39;s color may be slightly different.