The plasma magic ball , is a new high-class industrial products made by top technology lately ,the principle of this product is when the special gas in the glass ball is action by a high-frequency electric current ,the gas can send out many beams of magical light .the negative that the sphere give off can slash the air ,if there is music or voice around ,the light-beams will change with the varying cantus and rhythm of the music ( it works when having the voice control function ,this products is welcomed to be good present given to friends.