Large Plasma Ball】-- True 8 inch plasma ball! Large size for more fun and interaction. This 8" plasma ball is a great piece of decor for your bedroom, living room, office, or anywhere else! It'll create a super cool science like atmosphere. Touch-Sensitive Plasma Globe】-- It’s part science, part magic, and all fun! Just slide the switch to the "ON" position , this plasma sphere responds to your touch, sending rays of light wherever your fingertips go, very beautiful in the dark, which perfectly demonstrating beautiful scientific phenomenon. Not only does the static electricity ball follow your every touch with electric beams, but it even responds to music! Slide the switch to the "AUDIO" position, the plasma lamp will like a real-life music visualizer, swirling and pulsing to the beat in unique patterns.