Pencil Sharpener, Battery Powered, Batteries Included InnoDesk has combined features of handheld, manual sharpeners with the effectiveness of electric sharpeners to create a transportable, battery-powered sharpener. No longer restricted by a cord, consumers can enjoy the quality of a powered sharpener with the ease of portability. Designed for travel and classroom use, the sharpener includes loops for three-ring binder storage and a hanging strap.