Product Principle:

Fiber optic transmission includes a hand-crank generator, audio transmission and reception circuits, an optical fiber tube, and a speaker. The signal from an MP3 is loaded into light waves and transmitted along the optical fiber. At the other end of the optical fiber, a photodiode receives the light waves, decodes them, and reproduces the music from the MP3 through the speaker.

Gameplay Points:

Rotate the generator handle at a steady speed. Once the voltage stabilizes, the speaker will play music accompanied by flashing colored lights.