[USB Wireless Engraving Pen] This metal engraver pen equips with an excellent motor and a Lithium battery and is rechargeable by a USB interface., power up to 25W while working. Cordless using will be up to 30 minutes idling after a full charge.[Visible 3 Gear Adjustment] 3 gears adjustable speed 5000-25000 rpm, suitable for different occasions. The lowest speed allows you to polish your nails safely, and the highest speed can also be used for metal engraving. With power, gear and overload indicator lights, making it more convenient for you to use.[Multiple Accessories] These accessories are enough to work on engraving, carving, sanding, polishing, etching, routing, grinding, drilling, cutting.[Wide Usage] This multi-functional etching pen kit can be used as a mini engraver pen to engrave a variety of materials, like metal, stone, plastic, glass, ceramic, wood, leather, not only can be used for carving, sanding, etching, routing, grinding, drilling, cutting, but also for polishing manicure & pedicure, removing gel and cuticles.[Best gift] This portable and compact etching pen is easy to carry around, allowing you to enjoy easy jewellery making time, easy to operate, and suitable for beginners. Use our kit to make keychains and DIY necklaces as gifts.Colour: silverMaterial: metalPackage Contents:1 * Engraving pen2 * Drill bits (1.0mm, 1.5mm)2 * Cusps3 * Stainless steel cutting discs (22mm, 25mm, 32mm)1 * 2.35 Shank1 * Wrench1 * Screw1 * USB power cable30 * 2.35 Rotary BitsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.