| 摘要 |
An engine noise simulating novelty device is provided including a speaker for audibly transmitting audio signals upon the receipt thereof. Further included is a sound module connected to the speaker and a tachometer of a vehicle. The sound module is adapted to communicate audio signals with the speaker which represent a sound, wherein a frequency of the sound is varied with a change in the revolutions per minute of the engine of the vehicle, as indicated by the tachometer.
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