Mini audio interface, portable internal recording sound card for live streaming to connect smartphone and electric guitar, bass. Synchronize audio and video. Output the audio to smartphone directly, low latency, low interference, high fidelity recording. USB-C and Lightning for smartphone, The 6.35mm jack to connect electric guitar bass and the 3.5mm jack supports monitoring. Plug and play without charging. Back clip design and pocket storage, flexible and convenient to record at anytime and anywhere. High sensitivity & active detectivity, if the volume is too high resulting in distortion, the indicator light will turn from green to red.