USB Cordless Engraver: These engraving tools come with lithium batteries that can be charged via a USB port. When fully charged, it will stay idle for up to 60 minutes when using cordless. Easy to help youperform a better carving processGood Performance: Metal engraving pen with excellent motor, working power 10W. 5000-18000RPM 3-speed adjustment, suitable for different places. With the minimum speed you can safely polish nails,Maximum speed can also be used for metal engravingPortable and Compact: These portable and compact engravers are easy to carry, so you can enjoy a relaxing time of making handmade jewelry.Used for: Can work metal, glass, ceramics, leather, stone or statues. Can also be used for mobile phone motherboard maintenanceEasy to use: Our metal engraving tools are easy to use and especially suitable for beginners. Make keychains, DIY necklaces or give gifts with our setSpecification:Item Type: Electric Engraving PenMaterial: aluminum alloy, electronic componentsBattery capacity: 300mAh lithium batteryCollar depth: approx. 25 mm / 1 inchApplicable Grinding Head Handle Size: Approx. 3 mm / 0.11 inchPower: 10WCharging: 30 minutes to 80%, full charge in 60 minutesOperating time: 3-speed idle operation for more than 1 hour (long-term use can be used during rinsing)Level: Level 3Speed: 5,000-10,000-18,000 rpmPackage list:1 x polishing pen1x user manual1 x charging line7 x grinding heads<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store