World&＃39;s thinest speaker & world&＃39;s smallest pc camera. The function of this speaker is to give us wonderful sound effect when you put it on any hard surface, making your table-top sing the song by vibration.For example, if you put it on wood surface, you will get deep bass; if you put on glass surface, you will get crystal clear effect; if you put it on wall, the sound is penetrating etc. It is piezoelectric and ceramic plate technology, and it is not electromagnetic induction speaker like traditional one, it is capacitance speaker, so users could make entertainment everywhere and get 360 degree sound vocalizing.��