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.