[Super Powerful Motor]: Heavy duty electric pencil sharpener with high quality and durable helical blade can sharpen pencils quickly, the enhanced motor takes only 5s to sharpen new pencils and 3s to sharpen dull pencils^ [USB/battery operated]: This pencil sharpener comes with a USB charging cable, it does not come with an adapter. The pencil sharpeners can run on 4 AA batteries (not included) or USB DC power and are compatible with a wide range of devices, making them perfect for business, administration, use in a classroom, desktop, or office environment.^ [Large Capacity Shavings Box]: The larger capacity to store more shavings, justthe box and pour out the shavings, use the included cleaning brush to clean the sharpener faster and save your time^ [Auto-stop function]: Whether in use or not, the sharpener will automatically stop working when youthe lid of the shavings box, the 6-8mm jack design prevents your child's hand from being hurt when inserted, it's a safer electric sharpener for kids^ [Non-slip design]: The electric pencil sharpener has three non-slip pads on the base to prevent it from moving and shaking while working.pencils can be sharpened with just one hand. If you encounter any problem during use, please feel free to contact us through your order and we will give you a satisfactory reply