1、Save Memory And Portable: USB sound card, enhance sound effect and save computer memory resources. Suitable for laptop and desktop computers, lightweight and portable. 2、3.5mm Sound Port: This USB sound card is designed with a 3.5mm sound port, which can be used to connect headphone alone or sing with a microphone at the same time. 3、Plug And Play: Designed for live voice broadcasting, real time sound production effects. USB interface design, simple plug and play, no need to install additional drivers. 4、Easy To Use: External sound card supports listening and speaking, more convenient for study and work. Connected to the 3.5mm sound port, so that the music more sense of presence, the sound pleasing to the ear. 5、OTG Expansion: This USB sound adapter supports OTG expansion applications, expanding the potential functions of cell phones, tablets more, typing, playing games without lagging.