Cicada toys toys that make noise. By using the principle of vibrating sound source.Which is caused by the friction between the tendon and the rosin on the wood end, then send vibrations through.The tendons to the pipe to make the air within a pipe which is combined, more dense vibration sound จึงด are more and more.And when the cast cicada faster or better. To make the friction between tendon and turpentine at the end of the wood.The more vibration noise. The different volume will depend on the speed of swing.PVC pipe or cicada or increase the size of the pipe when the larger air within the tube. When the vibration will.Vibrate more noise and more).
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