This has got to be the best battery powered pencil sharpener! I'm an art teacher and I go through countless sharpeners. I bought a large pencil sharpener for my class, but I also bought two of these hoping my students wouldn't ruin the large one! This battery works better than the big one! Sharpens quickly with a sharp point and is relatively quiet! My students now think I'm crazy for sharpening pencils! This sharpener is so awesome I ordered it for my sister and her kids!