This is a scientific calculator (CASIO fX-350TL). It's battery-powered and comes with a convenient cover. - Brand: CASIO - Model: fX-350TL - Accessories: Cover - Power: Battery-powered (LR44 x 1) I used this for work, so it shows some signs of use, but there are no major scratches on the body or the LCD screen, and it functions without any problems. Would you like a second scientific calculator or your first one? Thank you.