Bigfun 20-key Piano Book Electronic Piano Keyboard & Music Book 2-in-1 Piano Songbook with Built-in Keyboard with 10 Instruments & 10 Songs Educational Musical Gadget for Kids 3 & Up Features: Practical & Interesting Piano Book: electronic piano keyboard and music book two in one, it is easy and interesting to play, not only practice your kid's logical thinking and concentration, but also good for their creativity and imagination. Including 10 Classical Music Instruments: piano, vibraphone, organ, accordion, guitar, violin, harp, trumpet, saxophone, and clarinet. 10 Popular Kid's Song Buttons: A-J 10 buttons represents 10 kinds of songs, for your kid to select her/his favorite melody. Record & Playback: design with the record function that allow you to record a melody you play, then play it to your kid. Light Weight & Portable: it is as small as a book, which is very convenient to carry around. Simple to Play: design of automatic piano accompany, and the piano key will light up, just play along with it. Battery Operated: just power by 2pcs LR03 AAA batteries. Specifications: Material: ABS Power Supply: 2 * 1.5V AAA battery (NOT included) Item Size: 215 * 175 * 30mm / 8.46 * 6.89 * 1.18in Item Weight: 388g / 13.70oz Package Weight: 451g / 15.93oz Package Size: 22 * 18 * 3.5cm / 8.66 * 7.09 * 1.38in Package List: 1 * Piano Book