Due to high order volumes, your K2 Pro Combo order is expected to ship within 10 business days. Multicolor 3D Printing: 4 × CFS for up to 16 colors Active Chamber Heating: Tackle performance filaments like ABS and PPA-CF Dual AI Cameras: Auto adjust flow rate and alert you to failures Smart Auto Leveling: Faster leveling of only the target print area Pro-Level 300 mm Volume (300 x 300 x 300 mm): Producing larger or more models in one print * K2 Pro Combo includes K2 Pro and one CFS unit, more details information pls visit Creality Wiki and K2 Series Printer Comparison. Suitable: Advanced hobbyists and semi-professional users who need a balanced combination of build volume, speed, and affordability.Ideal: Prototyping, creative projects, and medium-sized models.