Old bike:
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Blow into the microphone
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Tinder brush surface
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Squatting the Mat (1 second)
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Battery Hits
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Energy surge, surge
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Opening, closing doors, Passenger elevator
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Ventilation inside, The noise of the room
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Pounding in the mud
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Dragging an item on a concrete floor
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Servo motor
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Laboratory experiment
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Fishing, spinning spinning
★★★★★