Elegant Shape 10-D Calculator 1. 10-Digit calculator 2. Elegant acrylic key and ABS housing. 3. Digital display (V.A. 127 x 26mm). 4. Power operation：LR44 x 1 (battery included) 5. One touch easy operation 6. Auto shut off if no any key to be pressed in 9.5minutes 7. Basic calculator function Dimensions: 140 x 158 x 32 mm