Solar Digit Calculator 1. 10-Digit calculator 2. Elegant rubber key and Aluminum plate. 3. Digital display (V.A. 74 x 23mm). 4. Dual power operation：LR1130 x 1 5. One touch easy operation 6. Auto shut off if no any key to be pressed more or less in 9.5minutes 7. Basic calculator function 8. Dimensions: 170 x 100 x 7 mm Colors: Silver Packing: Packing is in 2-colored boxes. Private logos are accepted.