Katzco Plasma Ball -7.5 Inch - Nebula, Thunder Lightning, Plug-in - for Parties, Decorations, Prop, Kids, Bedroom, Home, and Gifts INTERACTIVE: These plasma balls have two different interactive modes. The 1st mode is a touch-sensitive show of multi-colored lights and the 2nd mode reacts to your touch and sound! PLUG IN: This Katzco plasma nebula lightening ball is powered by a 6-foot plug in cord. GREAT FOR DECORATION: This 7.5" plasma ball is a great piece of decor for your bedroom, kids room, living room, office, or anywhere else! It'll create a super cool science like atmosphere. GREAT FOR A PARTY: These Plasma Balls are perfect for your next party! They can easily be moved to create an awesome atmosphere everybody will love. SCROLL DOWN  To find out more on how to use it & why you will love to own one for yourself!!