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【Tesla Coil Speaker】- Tesla coils produce different tones based on different discharge frequencies. Spark gap arcs can also jump to the rhythm of the

Tesla Coil Speaker with Music, Artificial Lightning Arc Music , Touchable Spark Gap Arc Generator, Physics Science Teaching Experiment Toy Model Gift

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【Wireless Transmission】Wireless power transfer allows the bulb to glow without any contact or connection. Use your phone to connect and it can play

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