The QuietSharp Glow provides the ultimate blend of performance, safety and style for the classroom or studio. To make each pencil last a little longer and reduce classroom disturbing noise, the SharpStop system automatically shuts the sharpener down once the pencil is completely sharp. Then the unique SharpGlow light will come on, creating a soft blue glow around the dial to provide a visual indicator to the student and the teacher, who may not be close by. Its 6-size selector dial is perfect for a variety of pencils. Whether your classroom is full of elementary school students using a jumbo pencil or a Ticonderoga Tri-Write; or older learners who use standard pencils, this electric pencil sharpener has got you covered! And for ease of use, the Tip Saver Technology prevents over sharpening, extending pencil life. Once a pencil is completely sharp, the blade cutters will pull back and no further sharpening can be done. The XHC cutter technology allows for 70% faster sharpening and 10x longer life. It is made with extra hardened steel and the blade is designed to be helical, allowing for a pointed tip every time in under foud seconds. With the combination of a super duty motor and thermal overload protection, this electronic sharpener is completely protected from overheating. The giant shavings tray features our patented MagnaSafe tamper proof safety switch which shuts down the motor when the tray isn't attached. Sharpener Type: Electric; Power Type: AC; Cord Length: 4 ft; Intended-Use Environment: Home; School.