Very good plus condition. Play and manipulate MP3 audio files on a CDR or cd-rw rewrite disc. Change the key of a song without affecting tempo, change the tempo of the song without affecting pitch. Change key and tempo simultaneously. Select A-B repeat loops for musical practice. Use the built-in metronome. Record musical manipulation such as key or tempo changes, built-in microphone preamplifiers, built-in condenser microphone. Independent operation of the CD recording drive and CD player drive. Recording can be mixed with other sources. If you're reading this this far you know what a pro piece of audio equipment this is.