The TI-503SV pocket calculator is a go anywhere tool designed to make your life easier. The 8 digit super view display and contoured design make using it a joy. An Automatic Power Down feature turns it off even if you forget conserving battery life. Pocket-size calculator with giant SuperView display provides easyon-the-spot answers. Roomy keyboard with well-spaced rubber keys. Change sign (+/-) key simplifies entry of negative numbers. Battery powered for operation anywhere. Automatic Power Down (APD) feature conserves battery life. Display Characters x Display Lines: 8 x 1. Display Notation: Numeric. Display Type (s) : SuperView LCD display. Global Product Type: Calculators-Basic. Number of Display Digits (Nom) : 8. Power Source (s) : Battery. Size: 0.4 x 2.8 x4.5.