61-key portable keyboard with 375 high-quality instrument voices and 100 accompaniment styles * Premium package includes professional closed-cup headphones, single x-braced stand, and power supply * Portable Grand button lets you instantly call up Yamaha"s world-famous grand piano sound * Yamaha Education Suite (Y.E.S.) feature; 102 built-in songs for easy learning * Powered by 6 AA batteries or AC adapter(included in Styrofoam in keyboard box)