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Ideal kit for robotic and automation projects. By using sound or voice sources, a relay is energized. Increase or decrease the microphone level with the sensitivity adjustment. Requires a 9V battery. Enough for 10 Students.
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All prices are in USD. Registered Trademarks of KELVIN L.P include, but are not limited to: KELVIN®, Hands-On Science®, Build A Better Mousetrap Racer®, Rat Racer®, And the Winner Is…®, New Standards®, and SUMO Car Wrestler®.|