VENTION External Sound Card USB Stereo Audio Sound Adapter with 3.5mm Microphone/Earphone Jacks for Windows XP/Vista/Win/7/8/Linux/Mac Sliver USB external sound card, avoid electromagnetic interference, ensure high fidelity and stable sound transmission. USB to microphone/earphone design, separate microphone port and earphone port, single-hole notebook also support simultaneous connections of microphone and earphone. Mini size, does not occupy space, lightweight and easy to carry. Plug and play, no need to install drivers. Aluminum shell, shockproof and fast heat dissipation. Nickel-plated interfaces, plug resistance and anti-oxidation, reduce interference during transmission. Support WindowsXP / Vista / Win / 7/8 / Liux / Mac and other common systems. Support desktop / notebook / tablet to connect speakers, microphones, headphones etc..