The compact ART USB Mix is a 3-channel mixer and USB audio interface, ideal for home or mobile studios. The mixer has an XLR-1/4" combo jack input that can support mic, instrument, or line signals, allowing you to connect your favorite microphone or instrument. The input supplies condenser mics with 48V phantom power. There is also a a pair of 1/4" TRS inputs for stereo or mono line-level sources, ideal for connecting CD players, MP3 players, tape decks, and similar devices. The built-in audio interface converts analog input signals into digital signals that can be sent to your computer via the USB port for recording and editing your songs. Independent gain and level controls are provided for each input, the main output, and the headphone output. For added versatility, the USB playback switch enables you to monitor the output of your computer through channels 2 and 3.