A perfect and clean fully functioning pro harmonizer. If you're searching here, then you already know about it. Can be used in live gigging with either GUITAR or PIANO. Has midi so can follow the key changes of your song. I have gigged with this and used it in the studio to make some great harmonies. I am the original owner. Used exclusively in non-smoking and no pets home-studio and occasionally on small gigs. I take care of all my stuff and this is no exception. Has always been in a soft case when I wasn't using it. Comes with original manual and AC cord only.