2 in 1 Essential: Support listening + speaking, dual functions. Easily adds a 3.5mm TRRS aux port (integrated audio-in and audio out interface) to your devices. Your essentials gadgets for all your USB-Enable devices, such as , PC, Laptop, Desktop, , and more. Designed for Silent Computer: USB external sound card integrates audio input and audio output interfaces, It is an perfect alternative to a faulty sound card or audio port, Provides an alternative solution for a failed sound card. it enables you to connect your existing headset with 3.5mm TRRS to your PC through a USB interface. Plug and Play: No need to download the driver, the system will automatically recognize the USB to 3.5mm port in a few seconds. USB bus powered, No external power required. just plug and play. Extensive Compatibility: This sound card for , PC and More. Supports USB audio adapter systems, including / 8.1 / 8/7 / Vista / XP, , for , for Linux and Google Chromebook, Windows Surface 3 pro, etc. (Note: headset with separated headphone and microphone 3.5mm audio port is not supported) Compact, yet Durable: Premium metal casing and cotton braided cable a much longer lasting life. Much more durable than other plastic casing and PVC cable USB adapter. Also add more taste of stylish to your lifestyle. Colour:Black Material:Metal + braided wire Size:Cable length 20cm Package Contents: 1 x external sound card Only the above package content, other products are not included. Note: Light 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.