Trinka&ldquo;Yes Procam&rdquo;Magic Plasma Ball with USB Cable MATERIAL: ABS plastic lampholder, Glass lampshade POWER AND OPERATION: To operate this device is very easy, by inserting the power cable to the base and the USB in the power adapter, computer etc.All you need to do in order to start using it is to plug the usb cable into a usb slot and then into the plasma ball. Use the switch to turn it on and have fun. GREAT FOR PARTY- These Plasma Nebula Balls are great for using when you are throwing a party in any space. Can be easily and conveniently placed wherever you want. Just plug in, turn on and create an awesome atmosphere anybody will love. USE AS PROP- Kidscos Plasma nebula balls can also be used a prop for photos, videos, plays, and other types of creative performances. Pretend to be a mad scientist with this ball! Kids will love seeing what happens when you touch it!. NOTE: 1.The plasma light looks even better at night; 2.When the electricity follows your finger tips,may be you can feel it but it is so tiny that many people have no feeling but to enjoy its fascinating lightning.The static electricity sensation was because of the vibration of the ball glass as the electons strike the surface of the ball. The plasma light is perfect for a Cool gift,especially young ones.It is a real centrepiece and will keep them entertained. TRINK products have a LIFETIME GUARANTEE. If you're unhappy with our products in any way, we will completely refund your purchase. No questions asked.