1. To promote metabolism: Negative oxygen ions can activate a variety of enzymes, promote metabolism. 2. To enhance disease resistance: negative oxygen ions can make people excited, work efficiency, can improve sleep, there is a clear analgesic effect. 3. Bactericidal function: negative ions easy to adsorb bacteria, so that structural changes and energy transfer, leading to bacterial disease death, no longer produce new bacteria species. 4. Fresh air: negative ions and air floating in the smoke and dust and make it precipitate, so that the air becomes clean. 5. Reduce the electrostatic radiation: negative ion "-" charge and display " " charge phase neutralization, reduce the electrostatic radiation. Specification Power consumption: at 5 volts, the largest 2.5 watts. Working humidity: 90 Operating voltage: 5V Working current: ?500mA Working temperature: -20 ? - 75 ? Storage temperature: -40 ? - 85 ? Negative ion USB magic lights Power supply: USB Batteries Size: ball diameter 3 inches (about 8cm), the bottom diameter of 10CM overall height of 13.5cm Package include: 1pcs Plasma ball Accessories: USB cable oneHow to use: connect the USB cable to the product, connect the USB plug to the USB port of the computer or the power supply with the USB port turn the switch to the ON position to turn on the product and OFF the OFF position. Electrostatic induction: When you touch your ball with your fingers, the light in the light will focus and move with your fingers, and you can apply it to show and enjoy new gifts as friends and relatives. Purify the air negative ions can be neutralized by the negative charge and floating in the air with a positive charge of smoke dust, so that after the loss of natural precipitation, and ultimately achieve the purpose of purifying the air. Disinfection function: negative ions and static electricity, effectively reduce the air pollution in the air. And in the lighting, will produce a large number of high speed movement of negative ions in the light effect of light, the use of aerodynamic principles, can be more evenly and effectively spread to the entire indoor space, the environment for disinfection and purification. Ornamental: As a result of static induction, your fingers to the screen, the light inside the light will be gathered where the static light when the light beating. Can be used for rendering the atmosphere, the night in the brilliant colors give the feeling of a gentle nerve!.