Flexible and portable colorful piano from Rock and Roll It series that is ideal for aspiring musicians just taking interest in piano or for children, and comes supplied with instructional songbook and window packaging. It is made of silicon material which allows it to roll up and travel in a backpack and runs off of USB or battery power. It features 49 standard colorful keys, multiple keyboard tones, multiple demo songs, record and playback feature, built-in speaker, battery and USB power supply. Number of Keys: 49