Electric Engraving Pen USB Charging Wireless Indicator Lights Automatic Power Failure Grinding Pen

Type C Chargable: The electric engraving pen can be used for charging or connecting to a power source and comes with a Type C charging cable Fast Charging: The cordless engraving pen can be charged to 80% in 30 minutes and charged in 1 hour. with lasting battery, 1 hour of continuous use under normal circumstances Lightweight and Portable: The engraving pen is small and easy to carry, with 1to 3 s rotation speed of 5000, 10000, 18000 rpm, which one button Item Type: Electric Engraving Pen Material: Metal Plastic Adapt to Grinding Head Shank Diameter: Approx. 2.35mmCelsius0.1in Chuck Depth: Approx. 25mmCelsius1.0in Speed: 5000,10000,18000 Third s Power: 10W Use Time: The Third Runs for More Than 1 Hour with No Load. if You Need to Use It for a Time, You Can Use It While Charging Battery Voltage: 4.2V Battery Type: Lithium Battery (shipped with built in battery) Battery Capacity: 300mah Charging: 80% Full in 30 Minutes, Full in 60 Minutes