【Rechargeable Battery Operated】：With built-in 2000 mAh Rechargeable Environmental Protection Lithium Batteries, this pencil sharpener can be used more than 300 times after 1.5 hours charging. With the USB cable, it can be plugged into a USB outlet. Or just plug into a power strip with the adaptor (included). Flexible and convenient to carry around and use anywhere, Specially designed for kids, students, teachers, artists, engineers, industrial designers, etc.
【PREMIUM STAINLESS STEEL HELICAL BLADE】：UL Listed Electric Pencil Sharpener equipped with premium stainless steel stronger helical blade which can sharpen your colored pencils with hard leads, golf pencils and drafting pencils within seconds, save lots of time. Faster than other any type blades pencil sharpener.
