VCI-300 can control more than 90 parameters and functions of the included Serato software with high-resolution MIDI signals sent via USB * Built-in audio interface carries an Audio Codec IC with superb audio characteristic, generated by a delta-sigma modulation 24 bit stereo D/A-A/D converter * 12-level LED L/R indicator is set in the center of the top panel to monitor sound levels * Audio files in the software library can be easily selected and controlled with the Crates/Files/Browse key and the cursor switch inherited from the VCM-100 * Emergency Thru Switch located on the rear panel is a counter measure where you can use the VCI-300 with the provided ITCH software or without the computer connected if you simply want to play music from your external CD or MP3 player