Description: Features: 100% brand new and high quality. 12-digit calculator which is good for large calculation. Extra big LCD display, easy to read. Dual Power: Solar and Battery (without battery,if you want to replace the battery yourself, you can use either of these two LR44 LR43). Ergonomic Design: Comfortable buttons, great viewing angle. Suitable for office, school, store and home use. Specifications: Model: CT-512 Material: Plastic Color: Black Size: 130×130mm/5.12×5.12in (Approx.) Digits: 12 Power Supply: Solar power, 1* AAA battery (without battery,if you want to replace the battery yourself, you can use either of these two LR44 LR43) Screen: LCD Large Display Quantity: 1 PC Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (With retail package) 1 X Calculator