The external sound card extend a microphone and an audio ports to your computer. Replace your damaged sound card of your computer. Features: Plug and play. No drive needed. USB connectivity with 3.5mm port. No external power required. Widely compatible with Windows XP/Vista/10/8/7, Mac OS, Linux. Can be applied to laptop or pad with type-c port. Aluminium alloy case is more durable in use and provide you with long service time. Dual Jack 3.5mm ports. Microphone and earphone can be used at the same time. Hi-Fi stereo sound quality. Immerse in music. Light weight and portable. You can take wherever you go. Specification: Item size: 2.9 * 2.5 * 1cm / 1.14 * 0.98 * 0.39in(L * W * H) Item weight: Approx. 13g / 0.46oz Package size: 13.1 * 7.3 * 2cm / 5.16 * 2.87 * 0.79in(L * W * H) Package weight: 27g / 0.95oz Package List: 1 * USB-C to Jack 3.5mm External Sound Card