Auto leveling ? Removable and Heating bedmuch easier to take down models.Its suitable for various 3d printer filament PLAABSPETG etc. Detachable Nozzle ? Buckle design removable nozzle supports quick replacementno need to disassemble whole extruder when performing maintenance. Filament detection function ? Printing will be suspended automatically when filament is broken or used up and printing will be resumed after user replaces the new filament. Out of box ? Super quietthe sound of operation is 50 decibels. A fun STEM educational experience in mechanical engineering and electronics. What you get ? Flashforge 3d printer Adventurer 312 months warranty lifetime technical assistance and 24 hours professional customer service.