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.