Product Charger have changed to USB cable, so we can use 3D pen anywhere. Important Note: please use a power source more than 10W(Above 5V/2A USB),or the pen can not work normally. 3D Printing Pen: Imagining Creating Value-Are you still worried about children chaotic picture wall? Show that children have a talent for painting. Now develop children's hands-on skills and mental development ability. 3D printing pen, let the children win at the starting line Creativity - Help Kids developing artistic skills, spatial thinking, and can be a great creative outlet that engages their mind as they create. Stable performance: The performance is more stable, Safety and reassuring, be aimed at the child design the color is more refreshing, the appearance is more lovely. Let your child fall in love with 3D printing. Temperature Adjustment - With display screen, LED display temperature adjustment. The temperature can be adjusted at any time. Feel free to exchange materials, feel free to switch, follow the heart. Adjustable printed consumable speed, the internal temperature of the printed pen can also be adjusted. control temperature can control the cooling rate of material consumables, better shape 3D stereoscopic works.