DETAILS: EL-501WBBK Scientific Calculator Display Characters x Lines 8+2 x 1 Formula Notation Algebraic 3-Key Memory Storage Memory 1 Variable Statistics Two Levels of Parentheses 15 Base Number Calculations Complex Number Calculations Probability (Random Numbers) Battery Powered Size 3-1/8w x 5-3/4d Replacement Battery 1.5V Silver Oxide (EVEEPX76BP), sold separately Portable calculator with LCD display. Protective hard case and operating battery included. SOLD AS: Each STOCK NUMBER: EL501WBBK UPC: 074000017658