1. Engravable Materials: Wood, Bamboo, Paper, Plastic, Leather, Rubber, Sponge, Comb, Wallet Or Other Combustible Plastics (Such As Mobile Phone Cases, Mouse, Pencil, Business Card, Wallet, Plastic Comb) 2. Materials That Cannot Be Carved: Metal, Stone, Jewelry, Reflective Materials, Silver, White Paper (Astigmatism, Poor Effect), Materials That Cannot Be Burned Or Focused Materials, Such As Metal Without Any Coating, Transparent Plastic, And Additional Resistance Burning Materials 3. Carving Area: 10x10cm 4. The Distance Between The Laser Head And The Object To Be Carved: About 20cm 5. Power Supply: 5v 2a (Computer, Power Bank, Usb Charger) Power Supply Operation 6. Safety Certification: Ce, Fcc, Fda, Rohs, Cdrh, Iec 60825-1 (Laser Class 1), Iec 60825-1 (Laser Class) 7. Supported Picture Formats: Jpg or Bmp or Dib or Ico or Cur or Png or G-Code or Svg And Other Formats Laser Engraving Machine. Foldable Portable Mini Laser Engraving Machine. Mobile Phone Bluetooth Link Control. Feel Free To Carve Patterns You Like. Specification: Product Size: 6.5x6.1x5.3cm Product Weight: 190g Packing Size: 19.5x20.5x7cm Total Packaging Weight: 740g The Best Height Of Engraving: The Distance Between The Laser Head And The Engraved Object Is About 20cm Carving Area: 10x10cm The Laser Source Osram 450nm Blue Light, The Service Life Is At Least 10,000 Hours Laser Power: 1.6w Appearance: Anodized Aluminum Alloy Operation: Mobile App App Connection Mode: Bluetooth Connection Bluetooth Version: Bluetooth 4.0 And Above App Operating System: Support Ios 9.0and or Android 5.0and Power Input: Type-C (5v, 2a) Operating Temperature Range: 065 Working Humidity Range: 5 percent -80 percent (No Condensation) Safety Certification: Iec60825-1 (Laser-Level Safety Regulations), Ce, Rohs, Fcc, Fda Cdrh Registration, Iec60825-1 (Laser Level 4)