USB Charging Wireless Engraving: This cordless engraving pen can be used with rechargeable power or connected to a power source, equipped with a Type-C charging cable for convenient and fast charging. It charges up to 80% in 30 minutes and fully in 1 hour. The built-in battery provides continuous use for up to 1 hour under normal conditions.Portable & Easy to Operate: The precision grinding engraver measures 21.5 cm (8.46 inches) in length and weighs only 43 g (0.09 lbs), making it compact enough to fit in any pocket. Speed adjustment is simple with a single-button control offering 3 speed settings: 5000, 10000, and 18000 RPM. Adjust the speed based on your project requirements.Smart Design with Overload Protection: This electric engraving pen features a power indicator, speed indicator, and overload indicator to monitor real-time performance. When excessive resistance is detected, the overload light turns on and the device automatically shuts off to protect the motor, enhancing durability.Complete Accessories Included: The engraving kit includes 1 engraving pen, 30 grinding bits, 2 drilling bits, 1 holder, 3 stainless steel cutting discs, 1 wrench, and 1 USB charging cable. User-friendly design makes it ideal for beginners. Create custom keychains, necklaces, or personalized gifts with ease.Wide Application: This engraving tool is suitable for engraving, sanding, polishing, etching, grinding, drilling, and cutting on various materials including metal, glass, ceramic, leather, wood, jewelry, stone, and sculptures. Perfect for DIY crafts and detailed handwork.Color: Silver Material: Metal + Plastic Package Contents: 1 x Engraving Pen Kit (accessories included as listed) Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.