Electric Pencil Sharpener, Reliable, Fast & Quiet, Can be Operated Electrically (Adapter Included), USB port or Batteries - 3 Sharpness Settings (Black) Compact, Modern, Portable, Durable, High Quality and Lightweight Can be operated by using electricity (adapter included), USB powered (cable included) or Battery (battery not included) Three sharpness setting from blunt to sharp Safety stop mechanism: Stop when dust box is removed Can be powered by any USB port, makes it ideal for busy students