Features: 1.A wonderful music intelligence toys to develop children's brain awareness. 2.With excellent function of 3 kinds of timbre, 8 kinds of rhythm, 24 demos also with the adjustment of beats and volume. 3.Battery supply which is not included, convenient for playing indoor or outdoor. 4.With a mini microphone, kids can sing while they playing. It can bring lots of fun for your kids. Clear and convenient key for easy playing. 5.Delicate 37 black and white keys. specification: A wonderful music intelligence toys to develop children's brain awareness. With excellent function of 3 kinds of tone, 8 kinds of rhythm, 24 demos also with the adjustment of rhythm and volume. Battery supply which is not included, convenient for playing indoor or outdoor. With a mini microphone, kids can sing while they playing. It can bring lots of fun for your kids. Clear and convenient key for easy playing. Delicate 37 black and white keys. s: Condition: Brand New and High Quality Material: ABS Plastic & Electronic Components Keys Quantity: 37 Demo Songs: 24 Tone : 3 Rhythm: 8 Color: Black & White Power Supply: 4 x AA Battery (not included) Total Size: 33.5 x 10.5 x 4cm / 13.2 x 4.1 x 1.6inch Weight: Approx. 376g Packing List: 1 x Electronic Piano 1 x Microphone