Electric Pencil Sharpener, Heavy-duty Helical Blade to Fast Sharpen, Auto Stop for Colored Pencils, Battery Operated in School Classroom/Office/HomeFeatures:-Multiple Power Sources:There are 3 power sources:Powered by 4 x AA batteries (not included), an AC adapter or a USB cable.-And it is quiet, compact and lightweight . So it’s suitable for use in almost any situation.-Auto Stop Electric Pencil SharpenerSpecifications:Material: PlasticColor: Black , Blue , Pink , WhiteSuitable dia: 6-8mm(Hexagon, triangle, round)Power by: USB/AC adapter/4 x AA batteries (not included)Size: (Approx) (LxWxH) 132*87*99mm/5.2x3.4x3.9inchPackage:1 PC x Electric Pencil Sharpener1 PC x USB Cable1 PC x Manual【Worry-free after-sales】：If you have any questions or questions, please feel free to contact us, we will reply you within 24 hours.