This 2-in-1 sharpener allows for precision battery powered sharpening. With one-click of the switch, the top-quality blade becomes a standard hand-held manual sharpener. Great for office and classroom environments where quiet is intermittently important. Perfectly sized for travel or the on-the-go professional. Precision steel blade. Easy-to-remove locking top. Super grip feet. Space-saving design. Requires 2 AA batteries (not included).