Power by security and polymer battery, no explosion risk of spontaneous combustion.Please place the facility on a flat desktop.Please pay attention to keep the surface of the facility clean.It is prohibited for children to use the laser facility without adult supervision.The suggested time of use is not more than one hour at once except is mentioned other.Please keep the laser facility away from flammable objects.The laser facility is powered by 5V, 2A USB charger, Do not use other power.The laser facility passed the CE, safety control, and have no radiation.So please do not remove the laser to shoot your eyes. The laser does not have Radiation, but when it works the temperature is getting up to 400 centigrade.Please do not touch the laser or a laser beam when the facility is working.For engraving metal use NEJE MASTER 7W OR NEJE MASTER 20W) Important safety information Download Neje software and driver at the end of the article
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