External USB Sound Card 7.1 Channel 3D Audio Adapter 3.5mm Gaming Headsets Earphones Replacement for PC Desktop Notebook Input interface: USB2.0, USB3.0 Output interface: microphone interface, 4PIN earphone interface, earphone interface Frequency: 12Hz-22KHz Rated power: 15mW Color: black Material: ABS Power: 30mW Thread length: 1.5m PUBG Mode: Green Video Mode: Blue Other functions: microphone switch, volume adjustment Support system: for os Xv10.8, for Windows10, for Windows8.1, for Windows8, for Windows7, for Windows Vista. This product uses a 7.1 multi-channel surround sound effect, which can enhance the player's ability to locate low frequencies (footsteps) and high frequencies and accurately capture the world. Driverless design, no need to load drivers, plug and play, a step up in speed. Package Contents: 1 x External USB Sound Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.