1.Made in plastic material, eco-friendly and non-toxic material, comply with international standard. 2.There is a switch at the base, easily operation. 3. Powered by USB charge or 3pcs*AAA batteries (can be replaceable) 4. Can print logo and trade mark as customers requested 5.The plasma ball contains a gaseeous mixture, the base produces high frequency electromagnetic waves that gases to turn into plasma, which is an ionized gas. The ions produced emit some energy in the visible region and appear as colored Streamers 6. The plasma ball responds to your touch. The plasma is attracted to your hand as it nears and touches the ball. You may feel a slight tingling sensation, which is caused by the vibrations on the glass ball as the electrons strike the surface of ball.