| 摘要 |
A battery-powered, electro-mechanical device which automatically generates sound-effects and flashing lights depending on its position or tilt is disclosed. The device, housed in a rigid encasement, consists of a position/tilt actuator and sensor, an electronic circuit board, a sound-effects generator, an amplifier, a speaker, LED lamps and driver. The device can be attached to the underside of a skateboard between the forward and rearward trucks.
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