A system for producing sound and light includes a shoe or other article of footwear having multiple sources of light and at least one loudspeaker, and a unit located remotely from the shoe which is operative to transmit an RF signal to a receiver within the shoe causing the loudspeaker to sound.

 
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> Low-viscosity, silicone-modified penetrating asphalt sealer to eliminate water associated problems in asphalt pavements

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