With this Plasma Ball, you can enjoy an incredible atomic light show right at your fingertips. Just turn it on and watch what happens when atoms collide with each other and energized electrons. Watch your fingertips create amazing light effects as you observe how colliding atoms release energy in the form of light waves. Recommended for ages 14+, the plasma ball also responds to sound and music and comes packaged with STEM educational content. Requires 6 AA (1.5V) batteries (not included). | PMT Holdings Magical Desktop Plasma Globe