Speakers come in all different shapes and sizes. From giant loudspeakers on the stage of some rock star to a small speaker in the phone. But the basic technology is not really so complicated, and most of the time it is enough to amplify vibrations by using of large containers.
Boomball Echo speaker
Using its audio-vibratory-wired system, BoomBall effectively uses all hollow places as an amplifier, so more space - more sound.
Available in orange, pink, green, blue, black and white
Boomball measures: about 3,5 cm (L) x 37mm (H)
Power booster measures: approximately 1,5 cm (W) x 1,5 cm (L x 6,5 mm)