GUYUCOM Calculator, 12-Digit Calcutors, Sensitive Button, the Calulators Desktop with Dual Power

【SOLAR & BATTERY DUAL POWER】Solar powered and Battery back-up make the desktop calculator keep working in low light conditions (AAA battery 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.