1. Input Voltage: 5V 2. Gross Weight: 276g 3. battery Capacity: 3400mAh 4. Rotating Speed: 18000R/min 5. Product Size: 16.8 x 2.2 x 2.5cm 6. Suitable for decorating or personalizing a wide variety of materials including metal, plastic, glass, ceramic, wood, leather, and more 7. Engrave for protection against theft 8. Small volume, lightweight, easy to carry 9. High Quality to engrave glass, metal, ceramic, and plastic 10. Makes smooth and clear strokes 11. Works for metal, glass, ceramic, plastic, wood, etc
