YAMAHA PSR-77 Keyboard 49 Full Size Keys 100 AWM voices Built-in auto harmony And auto sustain voices 100 AWM rhythm styles Multi-fingering auto accompaniment "One Touch" setting 2 Speakers 12 Note polyphonic 2-Digt LED indicator 20 Jam tracks 20 Demo songs With melody on/off function Headphone jack Can run off 10v DC adapter (not included), always used battery though Nice basic keyboard. Selling for about $50 elsewhere on craigslist: http://batonrouge.craigslist.org/msg/1203864237.html Location: louisville, ky it's NOT ok to contact this poster with services or other commercial interests kentucky