Principle:

The power-driven surface has a small convex sound tube rotating at a constant speed. When the protrusion passes through the soundboard sound bar, it will move the reed (first slowly lift it up, then suddenly drop it) to make the reed vibrate according to the set vibration frequency. And the set sound is emitted.

Features:

A great parent-child STEM experiment game.

Easy to assemble, encourage kid's confidence.

Helps to learn about how real fan or other appliances work.

Complete DIY science educational toy kit.

Can be used as a power teaching experiment model.

Great for science education, development of hobbies and interest.

Log color is free to DIY Doodle and create a toy of your own.

A great gift for kids. It also can be a decoration in room.

Safe for 5 years old and above.

Specifications:
Color: As shown

Material: Wooden + Metal + Mirror

Size(finished): about 7 X 7 x 4cm

Age: 5+

Package Included:

1 x Music Box Kit

1 x Manual

Note:

Due to the difference between different monitors, the picture may not reflect the actual color of the item.

Due to manual measurement, there may be 1-2cm error in size.