Is this an April Fools' joke? "Brilliant Pebbles is a unique room & system tuning device for audio systems and satellite TV. Original (Large) Brilliant Pebbles is a 3-inch clear glass bottle containing various minerals/stones. A number of highly-specialized, proprietary techniques are used for preparation/assembly. Brilliant Pebbles acts as both a vibration "node damper" and EMI/RFI absorber, depending on application, via atomic mechanisms in the crystal structures." www.machinadynamica.com/machina31.htm