Mornajina 3 Inch Plasma Ball Light USB Magic Touch Sensitive Thunder Lightning for Parties, Decorations, Kids, Bedroom, Gifts Plasma Ball is great for kids of all ages: Placing a finger tip on the glass creates an attractive spot for the energy to flow, because the conductive human body is more easily polarized than the dielectric material around the electrode providing an alternative discharge path having less resistance. Specifications Ball diameter: 7.9cm/3.11'' Base diameter: 10cm/3.94'' Overall height: 13.8cm/5.43'' Voltage: 5V Input: 300-500mA Power Source: USB/4 AAA batteries (NOT INCLUDED batteries) Diameter: 3 inches Friendly Reminder 1.Prevent the ball from being hit with hard objects, and try to avoid using it in wet places. 2. Don't continuous power-on time over 2 HOURS at a time, otherwise the sphere will overheat. 3.The finger stay somewhere for no more than 10 seconds. Package included: 1X USB Plasma Ball 1 x USB Cable

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