Filament Compatibility: The 3D pen has two ABS and PLA working model. The heating temperature ranges from 60 to 245 ° Celsius, so it is suitable for many different printing materials.Safer and more convenient: working voltage of the 3D pen at 5V - 2A. Can be powered by mobile power, and the 3D pen has a smart sleep function that will automatically go to sleep after 90 seconds without operation. It is safer and more energy efficient.ADJUSTABLE TEMPERATURE: The 3D pen offers an adjustable temperature range of 60 to 245 Celsius. So much so that the material can be in the ideal molten state.8 Speed ​​Printing Speed: The 3D pen has 8 speed adjustable which by default at the sixth speed, you can adjust the printing speed according to your habits.Automatic feeding and returning mode: You can flexibly switch the 3D pen to automatic mode and manual mode according to your needs.