This is not a simple "Piano Keyboard", because it supports 128 musical instruments, including Piano, Dulcimer, Accordion, Harmonica, Guitar, Bass, Violin, Trumpet, Sax, Flute, Banjo, Tinkle Bell, etc. Features: - 128 different musical instruments. - 3 keyboard layouts: 21 Keys, 36 Keys and 72 Keys. - Black keys on/off. - 4 label options: "CDEFGAB", "Do Re Mi Fa Sol La Si", "1234567" and Disable. - 5 languages for the instrument list: English, France, Spanish, Chinese and Japanese. - Record and