My child played with this for about a year. The black keys are designed not to be pressed. Suggested retail price: 3,520 yen (tax included) Product number: GKV22 Ages: 6 months and up Product dimensions: 25.2 x 19.0 x 5.3 cm (width x depth x height) Main materials: ABS, PP Batteries: 3 x AA The following is quoted from the official website: Perfect size for little hands! This is a bilingual educational toy instrument that allows you to choose from 4 modes (ways to play). In learning mode, it teaches colors, shapes, and numbers in Japanese and English through talking and singing. In piano mode, enjoy playing it as a musical instrument. You can choose the "Duck" or "Cow" mode and enjoy the scale of do-re-mi-fa-so-la-ti-do♪ with animal sounds. Enjoy playing the piano with fun animal sounds!