This device is a Yamaha Organ (Yamaha PSR-79), a portable electronic keyboard specifically designed for beginners. Key Features of the Organ: • Number of Keys: It has 49 full-size keys. • Sound Library: It includes 100 different musical voices, 100 accompaniment styles, and 100 built-in demo songs for practice. • Built-in Education System: It features Yamaha's renowned Y.E.S. (Yamaha Education Suite) system, which helps you learn to play step-by-step and displays chords on the digital screen. • Connections and Ports: It supports MIDI In/Out ports for connecting to computers, and a Headphones/Aux output for connecting headphones for quiet practice without disturbing others. • Power: It operates via a fixed AC adapter or 6 D-cell batteries for portable use anywhere.