Features Safe and rechargeable: the carving tool is rechargeable and comes with a USB cable. Miniature engraving pen with integrated safety protection board and intelligent overload protection chip. If the working resistance is too large, it will automatically cut SPECIFICATIONS AND PERFORMANCE Up to 30W power when working, 3 speed levels can be adjusted in the range of 5000-15000rpm, suitable for various materials. The improved high-performance motor with 15,000 rpm provides better control and handling in comparison Lightweight and portable: the lightweight aluminium frame and ergonomic handle of the electric grinding pen allow you to precise fingertip control Low noise operation: this electric engraving machine works very quietly, so you don't have to worry about disturbing the rest of the family Portable and perfect gift: the main body of the etching tool is lightweight and small. Can be taken with you. Super easy to use, the perfect choice for beginners or professionals that allows you to customize everyday items to create a unique, personalized air conditioner Specification: Item Type:Electric Grinding Pen Material: ABS and aluminium alloy. Battery: 1 x 18650 battery, Battery capacity: 2000 mAh Speed:5000RPM (Low Speed), 10000RPM (Medium Speed), 15000RPM (High Speed) Power: 30W Charging voltage: 5 V. No load time: 4-5 hours Colour: blue. Package list: 1 x sander. 6 x grinding head. 1 x wrench. 5 x chucks. 1 x wool wheel. 2 x sanding discs Package List 1 x Sander 6 x Sanding Head 1 x Wrench 5 x Chuck 1 x Wool Wheel 2 x Grinding Wheel