Low Noise, Perfect for Beginners: The cordless rotary engraving tool is very and portable during the short journey. The working sound is very low, even quiet , it never make the interrupt even the others in a room. (The Power-Off Protection protect the beginners for safe use. We suggest this tool for adults only.) Made of solid metal: The outer metal wrap gives you a better metallic touch instead of a cheap plastic texture, and it never discolor or peel off during the use. 3-Level Speed Adjustable: The cordless electric engraving pen's Rotational to 18000r/min, and buile-in 3 different speeds (Short press) to engrave different materials. The engraving pen is and ergonomically designed to give you precise control and engraving. Power-Off Protection & Pure Metalic Hand Feeling: Built-in overload protection chip, when the resistance is high, it automatically power off to prevent machine damage and extend the lifespan. What you get: This engraving machine kit comes with: 1 X Engraving pen, 1 X USB Type-c charging cable, 30 X Engraving bits. All these bits are enough to work on engraving, carving, sanding, polishing, , routing, grinding, drilling, cutting, etc., Manufacturer: Aundhegrtt