Our miniature battery operated plasma ball with a 3" diameter ball, stands 6 inches high with the base. Can be set to react and pulsate to sound, and sends mini lightning bolts to your fingertips when you touch the globe. Great for party table decor and promotional purposes. Our special base design is an eye-pleasing transparent blue. Can be used with an AC power adapter (not included) or 4 AA batteries (not included).