Everyday Essentials Battery or USB Powered Operated Electric Pencil Sharpener Automatic Safety Lock Function (Black) Automatic safety lock function - The pencil sharpener stops operation once the shaving tray is removed Sharp durable SK5 steel blade & large easy-clean shavings tray with faster and stable cutting performance Multiple Power Sources - Can be powered by either USB (wire included) or 4 AA batteries (not included) Easy to use, quiet, compact, portable and durable electric pencil sharpener works for regular pencils, or colored pencils All genuine Everyday Essentials Products are covered by a 100% Satisfaction Guarantee and 2-year warranty. Customer satisfaction is our highest priority