Casio Inc. CTK4400 EPA 61-Key Premium Keyboard Package with Headphones, Stand, Power Supply, 6-Foot USB Cable and eMedia Instructional Software Premium keyboard pack comes with eMedia's award winning educational software, 6' USB cable, Samson HP30 closed-cup headphones, keyboard stand, and power supply 61 piano-look, touch-sensitive keys 600 AHL keyboard voices Hall effect button (at the touch of a button, concert hall reverb can be applied to the sound of the keyboard) 48-note polyphony