Vibro Radio Regular Speakers Sound Media Any flat rigid solid surface, such as tables, cupboards, glass, wall, etc. Paper Cone in a box Sound Quality Different surfaces will create different sound quality. For example, a large wooden table with good materials will produce clear, strong, and better sound then a thin piece of plywood. Some coherence character Sound Attenuation Less attenuation over long distance Much attenuation over a short distance Sound Direction No Direction Full 360 degree omni-directional Dramatic direction Power Little input, Large output Large input, Large output Size Tiny Bulky Appearance New concept, high-tech innovation in the speaker market Conventional Styles