MOMIX is a mixer for portable device's recording & live streaming, you canconnect it to microphone, guitars, keyboard, electronic drum sets and more. 2 stereo line-level input Jacks for your multi-media equipments. Just setup the instruments and vocal volume of the MOMIX properly,connect theheadphone or amp to it. And it can monitor well. When you're composing songs or want to use guitar effects pedal APP, just turn on GarageBand or similar types of software, and use it with MOMIX besides. MOMIX is suitable for singing and live streaming, just turn on MOMIX's CENTER CANCEL function and reduce the original vocal volume ofplayback music, making your vocal prominent. if you need audio-to-video synchronization, MOMIX can output the stereoaudio to your smartphone in real time, it's perfect for composing songs, livestreamer's instrumental performance/lkaraoke?musicians’recording performances, making the present music performance much more convenientand versatile!