What's vibrating with the music on the nightclub floor?

Tremble. Generally used in KTV and discos, the main function is to strengthen the dynamic effect.

The most common stage is the disco ground motion stage, which is an unpowered stage designed based on the principle that springs can store energy. It uses human weight to deform the spring and store energy. When the spring is deformed to the limit position, the stored energy is released. At the same time, the frequency of sound is used to generate * * * vibration to deform the spring, commonly known as spring floor, spring stage, spring dance floor, trampoline, ground tremor and so on. In fact, this question has already been asked. Although the content is plagiarized, I hope it can help you.