This solar scientific calculator is capable of calculating frequently-used logarithms precisely and can work for a very long time through dual supplies of solar and battery. 12-bit enables it to calculate as precise as possible. Furthermore, large screen displays data clearly with no data missing. And former calculated data can be checked again with some buttons. <br> <br>Features: <br> <br>Solar Power - Adopting solar charging mode to prevent it from sudden power-off. <br>Precise Data - 12-bit ensures the high precision of data with no error. <br>Large Screen - A large screen displays data clearly. No detail missing. <br>Former Data Checking - Former calculated data can be checked again with some buttons. <br>Practical Equations Calculation - To calculate frequently-used logarithms for office, finance, etc. <br>Wide Compatibility - Suitable for office, finance, etc. <br> <br>Specification: <br>Product type: Solar Scientific Calculator <br>Material: ABS <br>Calculation: For frequently-used logarithms, etc. <br>Charging mode: Solar charging <br>Digit: 12-bit <br>Former Data Checking: Support <br>Large screen: Support <br>Package size: approx. 13.5 * 13.5 * 2.5 cm/ 5.3 * 5.3 * 1.0 in <br>Package weight: 127g/ 4.5oz <br> <br>Package List: <br>1 * Solar Scientific Calculator1、Solar Power - Adopting solar charging mode to prevent it from sudden power-off. <br>2、Precise Data - 12-bit ensures the high precision of data with no error. <br>3、Large Screen - A large screen displays data clearly. No detail missing. <br>4、Former Data Checking - Former calculated data can be checked again with some buttons. <br>5、Practical Equations Calculation - To calculate frequently-used logarithms for office, finance, etc. 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. Sold by-dadangjia