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The normal version uses an audio cable to connect the mobile phone and the plasma speaker to play music
The engine has sound waves and adjustable speed
which effectively prevents high voltage feedback and makes its audio input device more stable and secure
Displacement: 15cc (0
Custom Stirling Engine 2 Cylinders Hot Air Generator Model with Voltage Meter LED Bulb Science Experiment Educational Toy Price_$30-$50 The normal version uses anCustom Stirling Engine 2 Cylinders Hot Air Generator Model with Voltage Meter LED Bulb Science Experiment Educational Toy Features:. Novel Shape: It is a balance type two cylinder structure, installed with a small generator, heated by alcohol, the engine runs steadily and rapidly and generates electricity, thereby bringing a bright voltage meter, LED or light bulb. When the machine is running, it will be very shocking and eye catching.. Science
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