[Cordless & Portable] Wireless mini rotary tool with compact body and light weight design is comfortable in the hand. Small and body makes easy to handle for fine tasks and delicate work. [Rechargeable Battery] The engraving pen has an powerful motor, which is suitable for small size cutting, powered by 300mAh lithium battery. It can be by USB Type-C cable, and can work for above 1 hours after a full charge. [Wide Application] Cordless rotary tool can be used to engrave wood, stone, , crafts, glass, ceramics, etc. It can also be used for carving, sanding, grinding, drilling, cutting and so on. [Ergonomic Design] and compact design make the electric engraving pen easy to carry. The non-slip handle adds extra comfort and stable control, providing a comfortable experience for engraving performance.