Victor 700 Pocket Calculator, 8-Digit LCDEight-digit handheld calculator has a large LCD display so it's easy to read. Dual powered calculator works with or without batteries. Non-slip rubber keys help prevent input errors. White calculator base contrasts with black keys and bottom case. Power Source(s): Battery; Solar; Display Notation: Numeric; Number of Display Digits: 8; Display Characters x Display Lines: 8 x 1.