Tradeopia is proud to include our new 8" large plasma ball: the perfect holiday or birthday gift for budding little scientists. ?control lightning with your fingertips using this 8" plasma ball!watch as flickering tendrils of energy dance inside this delicate glass ball.when you touch it, they gather towards you like magic, and tickle your fingertips for the ultimate interactive lighting experience.turn on audio mode and watch the lightning inside respond to sound and flash to the beat.the 8" plasma ball makes a great centerpiece for a party or a gathering, and works just as well for your own private decoration.includes ac adapter so you'll never run out of power.