Strong compatibility: for almost headphones, earphones, microphones, gaming headsets and so on. It can convert your headphones to 7.1 channel environment. Sound card structure: Port include USB, 3.5 mm (4pin) and 3.5mm 2x3pin headphone and microphone input Standard USB connection replaces traditional sound cards. Not need driver,plays Auditory instantly. Can be used on desktop PC laptop, game consoles, and other device enhances the sound of game, movie, and music. Product Name:External USB sound card Cable length:7.5cm Features:virtual 7.1-channel surround sound Core:Travlon + copper + shielding Sampling rate:44.1K/48K/96K Function:Big knob tuning / a key 7.1CH / mute Compatible with dual mode: single plug headset / dual plug headset Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:Black Material:Plastic Package Contents: 1 * Game 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.