Specification :

These vibrating speaker turn any hard, fat surface into a speaker for your laptop, mp3 player or cell phone. Featuring a new leve of audio technology, they don' t generate acoustic sound themselves. Instead, they drive powerful sound waves into whatever surface they are placed on, causing that surface to literally become a speaker. On glass, wood, or plastic, any material that can vibrate will generate music in 360 degree .Moreover, unlike regular speakers, the sound waves propagate in the air in a pattern that provides a more even distribution.