1. Consumables: PCL (70-100 degrees Celsius) 2. Consumable diameter: 1.75 mm 3. Charging interface: USB2.0 4. Output speed: slow and fast adjustable 5. Nozzle diameter: 0.7 mm 6. Dimensions: 183x22x40 mm 7. The low-temperature rechargeable pen case contains: 3D printing pen X1, pen holder X1,USB data cable X1, PC pad X1, manual X1, simple tutorial copy paper film X1