USB Charge: These wireless engraving tools equipped with Lithium battery and rechargeable by USB type-C interface. Cordless using will lasts up to 30-60 minutes after fully , Easy to help you finish better engraved craft. Low Noise: The sound of this cordless tool is low when working, no need to worry about it will affect the family's rest. It will be great for beginners and to use at anytime, anywhere to make unique creations, it will be the good gift for anyone who is interested in engraving or drilling on materials or DIYS. Wide Applications: This electric engraver tool supports you to decorate and in any material supplier, such as glass, wood, eggs, plastic, jewelry, , leather, metal and etc. You can use this tool for engraving, grinding, polishing, drilling, and cutting on metal, glass, jewelry and other materials. applications included engraving tools, drilling , toys, telephone chargers and delicate jewelry, watches and glassware. Easy to Use: One button to turn on or turn off the engraving pen, also this bottom work for flexibly adjust the speed according to the needs of carving. There are 3 gears with speeds for your choices and cordless engraving pen is equipped with a built-in overload protection chip. When the load resistance is too high, it will automatically power off to protect it, and prolong the service life of the jewelry engraving machine. Portable and Flexible: The body of etcher engraver tool is small and weighs only 0.088 pounds, you can carry it anywhere and allow you enjoy relaxing hand drill jewelry making time. This portable engraving tool made of durable and lightweight aluminum; the ergonomic design of the pen body provides you with precise fingertip control. Package Include 1 pcs engraving pen 5 pcs Stencils(random style, ' accept the specified ) 30 pcs engraving bits 3 pcs saw bits 1 pcs connecting stick 1 pcs USB-Type-C Recharge Colour:Silver Material:Metal Package Contents: 1 set x engraving pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.