The Sparkling Symphony Rock and Play Piano was fun for my daughter when she was younger, but now that she is two she isn't as interested. I think she is too big for it now. It is best for children 8 months to 2 years old. The sound is very good. When you hit the keys it plays many different symphony songs and there are cool lights that flash on and off. There is a flip book that resembles a piano music book and a dial that when turned changes the instrument sound to a harp, flute, piano, violin, or tuba. My daughter's favorite sound was the harp. She liked to sit on it and rock back and forth although it does tend to tip over easily. There are feet that pop out to stop the rocking feature if desired. It requires 3 AA batteries.