HHC(TM) cutter technology for faster sharpening and longer life! QuietSharp(TM) heavy-duty motor for quiet, stall-free operation under normal use. Tip Saver Technology(TM) prevents over sharpening to help extend pencil life. Easy-clean shavings tray with safety switch to prevent operation when tray is removed. Thermal overload protection for increased motor life. UL listed. Backed by the manufacturer's 7-year limited warranty. Stanley-Bostitch Pencil Sharpeners part of a large selection of office supplies. Bostitch(R) QuietSharp Executive(TM) Electric Pencil Sharpener is one of many Electric/Battery Operated Pencil Sharpeners available through Office Depot. Made by Stanley-Bostitch.