1、【Superior Electric Pencil Sharpener】With a robust motor and spiral blade, this pencil sharpener can swiftly sharpen new pencils in 5 seconds and revive dull pencils in 3 seconds. It offers a significant improvement over manual sharpening, saving you valuable time. 2、【Broad Compatibility】This pencil sharpener is designed to accommodate both standard and large pencils with diameters from 7 to 8mm (2B-4B), including colored pencils. It can handle various pencil shapes, such as round, triangular, and hexagonal. 3、【Precise Sharpness Control】This electric sharpener is equipped with an auto-stop and auto-eject feature, halting operation once a pencil reaches the perfect sharpness. This feature helps to avoid unnecessary pencil wastage. 4、【Sturdy Helical Blade & High-Capacity Battery】The sharpener features a durable alloy steel helical blade that can withstand over 6000 sharpening cycles. Its built-in 2000mAh lithium battery allows for multiple sharpening sessions after a full charge. 5、【Customizable Sharpness & Large Waste Bin】This pencil sharpener provides three adjustable settings (fine, medium, and coarse) to achieve your preferred sharpness level while preventing lead breakage. Its generous waste bin allows for prolonged use before needing to be emptied.