Be sure to add me to your favorites list Owner's / User's / Operation Manual Booklet for the Casio DM100 Double Key Digital Keyboard, Reproduction. This is scanned and then printed paper hard copy reproduction version of the owner's / user's / operation manual for the very unusual and rare DM100 double-key electronic keyboard. This is the English language section only, and it is very helpful with the operation, selection of sounds, accompaniment, the upper keyboard sampling function, and much more info about your DM-100. The DM100 is one of Casio's great digital keyboards, and one of the more rare ones at that, and you need the manual to get the most out of it! This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thanks for looking! Check out my Store!