Features: Can be independently connected to the microphone to use connect desktop microphone, computer K song / webcast experience better voice function. For computer connected to the shocked sound effect to listen to music, watching films and more. Protect the computer with Headphone+microphone interfaces, save the computer sound card damage. Laptop connect headsets Solve the problem of laptop computers can not be connection to the double plug headsets Support listen + speak two-in-one function Suitable for users who need to use headphones and microphone on their computers, laptops or tablets. Specifications: Type : Usb External Sound Card Sound Card Size：about 4.1x2cm/1.61x0.79in Cable length:about 10cm/3.94in Connection：USB2.0 to 3.5mm Package Includes: 1PC Usb External Sound Card note: Due to problemsof lighting effects, there will be tolerances in the product, please understand. Please allow 0-1cm error due to manual measurement.