PLUG IN: This Katzco plasma nebula lightening ball is powered by a 6-foot plug in cord. GREAT FOR DECORATION: 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. Manufacturered by Katzco. 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!! 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!