Versatile Sharpening : Quickly and efficiently sharpen pencils with a 6-8mm diameter, suitable for various types of pencils including #2, colored, and charcoal. Auto Stop Function : Designed with safety in mind, the auto-stop feature prevents overheating and saves pencil lead by stopping sharpening once the pencil is perfectly pointed. Battery And Usb Operated : Experience the convenience of dual power options, allowing you to operate the sharpener with either 4 AA batteries (not included) or via a USB cable. Portable And Compact Design : Carry this lightweight sharpener anywhere you need. Its compact size fits perfectly in desks, backpacks, and briefcases for on-the-go use. Practical Lid And Shavings Box : The top-open lid provides easy access for cleaning, while the large capacity shavings box minimizes frequent emptying, ensuring uninterrupted use. Embrace precision and convenience with our versatile electric pencil sharpener. Perfect for any environment, from classrooms to offices, it boasts a durable helical blade that ensures pencils are always ready for use.