Specifications: Made of PS material, durable to use. Large display, easy to read. Solar powered, energy saved. You can also put battery in it, which is very convenient. Suitable for home, office, businessman, school and etc. Type: Calculator  Material: PS Power Supply: Solar Power or AA Battery (Not Included) Features: Solar Power, Large Display, Dual Power Size: 14.8cm x 11cm x 3.5cm or 5.83" x 4.33" x 1.38" (Approx.) Notes: Due to the light and screen setting difference, the itemand 39 s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Calculator Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.