Roland AX-1 Specifications The AX-1 is a 45-key, lightweight midi controller. It allows you to take your keyboard playing out to center stage and enjoy a mobile keyboard unit, just like a guitarist. It harnesses an Expression bar to control Pitch bending and Modulation according to your finger position. It runs on 6 AA batteries and, depending on the battery brand, it can last up to 30 hours of playing time. Specifications Keyboard: 45 keys (velocity sensitive). User Patches: 32. Neck Master Controls: Data Entry Knob, Transpose, Patch Up, Patch Down, Start/Stop, Modulation/Bender/Aftertouch Bar, Octave Up, Octave Down, Sustain. Body Master Controls: Patch recall x 16, 17-32, Patch Mode On/Off, Variation CC00, Capital Program Change, Numerical Button x 10, Enter, Write, MIDI/Param, KBD Mode, EDIT (Upper/Lower), Chorus On/Off, Reverb On/Off, Data Entry Assign. Connectors: MIDI Out, DC In. Power Supply: DC 9V: AC Adapter, Dry Batteries x 6. Dimensions: WxDxH 1004 x 193 x 90 mm (39-1/2 x 7-5/8 x 3-9/16 inches). Weight: 3kg (3lbs 10oz). *NOTE-A 9volt AC adapter is not included in this auction; however, I will include a brand new set of 6 AA batteries to get you started. *NOTE- This is a MIDI Controller, you will need a master keyboard to control for actual sounds. I am including a 20ft MIDI connecter cable for ultimate stage and studio performance. Feel free to contact me with any more questions I may not have answered! Thanks everybody, I hate to be selling this. But i just dont give it the use it deserves. FOR PICTURES VISIT THE EBAY PAGE AT THIS LINK: http://cgi.ebay.com/Roland-AX-1-MIDI-Controller-Keytar-AX1-AX-1-w-extras_W0QQitemZ170304430156QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item170304430156&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A0%7C293%3A1%7C294%3A50 If anyone is interested please email me at, layneorr@yahoo.com!