Pelouze LO1 Lo1 Battery Operated Letter Opener, 4-3/4w x 1-1/4d x 2-1/2h A quick and easy way to open mail. Small, lightweight letter opener, great for home or small offices. Small, lightweight letter opener, great for home or small offices. No adapters or cords; requires four AA batteries (sold separately). Blades are recessed to protect hands. A quick and easy way to open mail.