Dual-Power Flexibility: Use 4x AA batteries(not include) for on-the-go sharpening or plug in via USB for endless power in the classroom, office, or home. An adapter is included. 3 Adjustable Tip Settings: Choose from 3 pencil lead thickness settings to match any writing or drawing requirement. Faster, Sharper Results: A strong motor paired with blade sharpens pencils 30% faster and maintains a sharp edge for thousands of uses. Insert & Go: Simply push the pencil into the pencil sharpner—the motorized mechanism automatically grinds the tip, ensuring a perfect point every time. Spacious Dust Container: A large, easy-to-empty dust compartment keeps your workspace tidy and eliminates frequent maintenance. Pencil Sharpener