Be sure to add me to your favorites list Yamaha RY9 Drum and Bass Machine with Guitar or Bass Guitar Input, plus an AC Adapter / Power Supply This is a great working Yamaha RY9 Drum Machine, that also has Bass and synth sounds (they can be turned off if you want only drums). There are multiple drum kits and preset styles, and slots for user's patterns, and even user drum kits, using sounds from all the kits available if you want! There is only minor scuffs on it, and all buttons and switches work great. The pads for the sounds have a nice feel to them and are in great shape. This unit also has a guitar input and synthesizer feature, with a standard 1/4" input which can be used to trigger some 50 synth voices, like horns and other instruments. The tracking in OK with a guitar, but much better when you use a bass. The input can just be used to mix with the drum machine, saving a slot on your mixer. Using MIDI you can also trigger a separate tone module with it, expanding it's capabilities greatly! The battery cover is missing, but it comes with an AC adapter / power supply, not original, but it works great. The LCD screen works as it should, but it's best to look at it from an angle to see it clearly. The photos are of the actual unit you are bidding on, with a power supply that works perfectly! The last 2 photo is a screen shot of the RY9 brochure, not included but it shows more features of this unit, and a screen shot of some specs. This is a nice drum machine / sequencer for many types of music, with the added bonus of the guitar input feature. See all my photos! Thanks for looking! Check out my Store!