GUYUCOM Calculator, 12-Digit Calculators with LCD Display Sensitive Button, the Calculator Desktop with Dual Power Solar & Battery Dual Power, Black

【SOLAR & BATTERY DUAL POWER】Solar powered and Battery back-up make the desktop calculator keep working in low light conditions (AAA battery NOT included). the pocket calculator has an automatic power-off function. 【12 DIGITS CALCULATOR】12 digits make large calculator most useful for large calculations. Suitable for businessman, workers, teachers, students or anyone who need to make calculations. 【BIG BUTTON DESIGN】Electronic desk calculator adopt calculator large button design in line with the use of human habits and comfortable for touch. Great Calculator as kids calculator office calculator and maths calculator. 【4 Anti-Slip Mats】The calculators with 4 Anti-slip Mats, which can avoid sliding while usage and not damage to the desks. 【NOTE】Some buyer may use office calculator in the early morning or night. The screen maybe difficult to read in low light without battery power. Please insert AAA battery if need to use in low light.