Yamaha PSR270 61-Key (Full Size Key) MIDI Portable Keyboard with Yamaha Education Suite. Only $50! Music Making with a Touch of Style Portable Grand Piano Superb Sound Quality 6-Track Sequencer Chord Dictionary Professional-Style White Cone Speakers Song Memory Easy-to-See Backlit LCD Pianist Styles One Touch Setting For product details: http://usa.yamaha.com/products/musical-instruments/keyboards/digitalkeyboards/portable_keyboards/psr270/?mode=model Excellent condition. Although the A/C Adapter is missing, it still works fine with 6 A-batteries. Or you can get a 12V A/C adapter for $10-15.