Echwave Support 16-bit or 24-bit sampling accuracy. Support OS v9.0 or higher, XP / 7/8/10, Linux, Android. Specifications: : black Material: aluminum alloy Interface: 3.5mm audio jack, 3.5mm microphone jack Package Content: 1 x USB Audio Sound Card Adapter Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the item in the picture to be slightly than the real thing. The allowed measurement error is +/- 1-3 cm.