2 in 1 External Sound Card USB to 3.5mm 7.1 Audio Earphone Microphone Adapter Specifications: Support headset and microphone dual function. (PS: You need to wear a headset with mic to achieve voice function). 7.1 sound track brings more stable and high clear sound effect, perfect for gaming and music listening. Solve the problem that the headset can not be voice, sound card is damaged, etc. Compatible with both OMTP and CTIA connective interface. Suitable for more devices, plug and play. (Support for Apple headsets) Item Name: External Sound Card Material: Aluminum Alloy Sound Track: 7.1 Channel Features: Durable, USB to 3.5mm Jack, Plug and Play, 7.1 Channel Size: 52mm x 14mm x 7.3mm/2.05" x 0.55" x 0.29" (Approx.) Notes: 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. Package Includes: 1 x External Sound Card 1 x User Manual (Others Not Included)