DJ-120D Plus Desk calculators with check & correct function Specifications General Data: 12 Digits EXTRA BIG LC-Display Two Way Power Dimensions (H x W x L): 34,6 x 144 x 192 mm 300 Steps Check Plastic Keys Key Rollover Weight: ca. 205 g Battery: 1x LR44 Functions: Review & Auto Review Recheck with Sound Assist Go To Function Correct Key GT Memory 3 Key Memory Key for changing Plus/Minus Sign Local Digit Separator Formats Double and Triple Zero Key Percentage Calculation Back Space Key Mark Up Rounding selector (0,1,2,3,4,ADD2) Automatic rounding-off F, CUT, UP, 5/4 Square Root