Casio CT-S410AD Portable Keylighting Keyboard in Black The CT-S410AD is a great keyboard for expanding your knowledge of the keyboard and improving your playing. It is incredibly simple to use and has 61 touch sensitive keys for expressive performances. The new full graphic screen with backlighting is easy to read and clearly displays options so you can navigate without difficulty. Never before have sound and setting adjustments been so simple or clear. For music on the go, you can use the included power supply or 6 AA batteries (not included). Fantastic Sound, Small Size. The CT-S410AD features an expressive grand piano tone, among other things, thanks to Casio's cutting-edge AiX sound technology. You can choose from over 600 tones that can all be layered and adjusted, so you won't have any trouble finding musical inspiration. A richer, more dynamic tone that complements the excellent sound quality is made possible by newly developed Bass Reflex speakers and surround Sound mode. You will enjoy playing and listening to the CT-S410AD's sound repeatedly. Specifications