See the power of lightning at your fingertips! The 3" Plasma Ball is a fun novelty item and reacts to your touch or even the music you play! This 3" Plasma Ball makes a great addition to tables or desks in any environment. You can bring it out at parties or as an all year decoration. Watch science dance before your eyes! Impressive design with USB Power for easy and convenient use. - Small enough to not take up too much space so that it is a great item for any office desk. But it is wonderful enough to amaze anyone.