DescriptionFast Sharpening: With a more powerful motor, this electric pencil sharpener sharpens quickly in 5-10 seconds and automatically stops working at the perfect point to protect pencil tips and intelligently handle broken pencil tips. It can sharpen almost all 8mm pencils, such as #2 pencils, colored pencils, charcoal, and more.Automatic Stop Save Pencils: The colored pencil sharpener works automatically when you insert the pencil into the sharpening slot. Automatically stops working when finished or the lid is opened without over-sharpening, saving pencil tips. The 8mm sharpening slot keeps children's fingers away from danger.Corded Electric Pencil Sharpener: This electric pencil sharpener with a plug can be powered by 4 AA batteries (batteries not included) or a USB cable. It is easy to carry and can be used anywhere. (Power supply: input 100-240V, output 6.0V/1500mA or 4 AA alkaline batteries)Durable Pencil Sharpener: A mechanical pencil sharpener with a heavy-duty, durable helical blade that sharpens your pencils over 3000 times. It is faster and more durable than ordinary electric pencil sharpeners.