100% Brand New.The base produces high frequency electromagnetic waves that cause the gases to turn into plasma.If you touch the ball、 the lightning bolts will combine into a strong beam and follow the movement of your finger.Clap hands to it and watch the pattern of the sound reflected in its striking pulsations.Perfect decoration for homes、 parties、 cafe、 bars、 restaurants、 exhibitions and so on.Powered by PC USB port.A great gift for your friends.Diameter: 10cm.Height: 14cm.WarningThis product contains glass、 which may cause injury if broken.It is recommended to inspect the plasma ball carefully before each use.If any sign of defects、 or breakage、 discontinue to use and dispose of immediately.Package Content:1 x USB Plasma light Ball1 x USB Cable