1、Automatic Power Cut Off: This electric engraving pen is rechargeable and comes with a USB cable. The miniature engraving pen has a built in safety protection circuit board and an intelligent overload protection chip. When the working resistance is too high, the power is automatically cut off to prevent damage to the engraving pen, which is very safe to use. 2、High Power: The electric engraving pen works with a power of up to 30 W. The 3 stage speed can be adjusted in the range of 5000‑15000 r/min and is suitable for different materials. 3、Accurate Control: The motor of this electric engraving pen offers better control and manoeuvrability than many other motors on the market. The lightweight aluminium frame and ergonomic grip provide you with accurate fingertip control. 4、Low Noise: This electric engraving pen has a very low noise level when working. No need to worry about disturbing your family's rest. 5、Easy to Use: The body of this electric engraving pen is light and compact enough to carry around. Super easy to use and perfect for beginners or professionals. This is a portable engraving tool that allows you to customise everyday items and create unique personalised accessories and gifts.