Vibration-Speaker-RVFM-QE-1652-P-This-novel-vibration-speaker-can-transform-almost-any-surface-into-a-loudspeaker-It-is-in-essence-a-conventional-speaker-but-without-the-normal-cone-that-vibrates-the-air-allowing-sound-to-be-carried-to-your-ears-Instead-the-vibration-is-passed-directly-to-any-surface-that-it-is-in-physical-contact-with-The-surface-is-vibrated-&-in-turn-vibrates-the-air-P-P-The-vibration-speaker-provides-an-interesting-method-of-demonstrating-the-physics-of-soun