Product Detail 61 piano-style keys Touch Response (2 sensitivity levels, off) 48-note polyphony (maximum) 570 high-quality tones including stereo grand piano tones Package includes Power Supply, Keyboard Stand and Professional Closed Cup Stereo Headphones . The "Casio LK-270 Premium Lighted Keyboard Pack with Power Supply, Keyboard Stand and Professional Closed Cup Stereo Headphones" is best product for you. We recommended Casio LK-270 Premium Lighted Keyboard Pack with Power Supply, Keyboard Stand and Professional Closed Cup Stereo Headphones