2 Power Modes: our whale electric pencil sharpener features dual power supply modes, allowing you to use a USB cable, with a data cable included in the package, or you can opt for battery power, compatible with No. 5 batteries, making it convenient for outdoor use in schools; please note that batteries are not included. Removable Silicone Cover: this pencil sharpener is designed with a removable and reliable silicone cover, which can be easily cleaned if stained. The sturdy ABS body provides durability, and the large silicone pad on the bottom ensures stability and prevents slipping. Electric Power Saving: compared to manual sharpeners, using this electric pencil sharpener allows for quicker handling of pencils. It is user-friendly, saves time and energy, and prevents pencil jams, making it easy for children to use as well. Fast and Stable: the pencil sharpener efficiently sharpens your No. 2 or colored pencils within 3 to 5 seconds. Avoid pushing the pencil while sharpening to ensure smooth operation; the non-slip pad contributes to a stable sharpening experience, enhancing your work, study, and drawing efficiency.