Thames & Kosmos Plasma Ball in Multi

Budding electrical engineers and physicists alike will be astounded at the electrifying visual display of this plasma-centered glass ball that contains a supercharged ionized gas that can be found in every star. An alternating high-voltage current radiates from a Tesla coil to the inner surface of the sphere, causing escaping electrons that result in the inert gas lighting up. A sound-activated mode makes the plasma arcs dance to the beat of a song. Warning: Choking hazard. Small parts. Not for children under 3 years Ages 14 and up 5.7" x 9.7" x 5.7" Battery- or USB-powered Hangs on wall Requires 4 AAA batteries (not included) Some assembly required Glass/plasma ball/electronic components Imported