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Unique Scientific Experiment Package
The Mini Coil Music Boxes Science Education Multifunctional Mini Speaker Wireless Lighting Power Transmission is a unique gadget that offers a scientific experiment package. It features wireless transmission and speakers, and can also light up the air pipe and various bubbles
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Dual Music Modes with Long Arc
This music box features dual music modes that include Bluetooth-compatible music and square wave music. When the coil produces different tones according to different discharge frequencies, the spark arc can also jump with the rhythm of the music