Product specification: you will get 1 piece of standard calculator without button battery, which is small and lightweight so you can hold it easily in hand to use or lay it on the desk High sensitivity: this portable calculator has high sensitivity and quick response to the keys, which improves your work efficiency; What's more, its spacious button size ensures that your fingers are much less likely to hit the wrong number Reliable material: the smart calculator is made of quality plastic with electronic components to ensure normal daily use and you can use it for a long time; The candy-colored design and reasonable button layout make it beautiful and practical Dual-power supply: this electronic digital calculator supports both battery and light energy power supply; If the battery suddenly runs out, you can still continue using the calculator, which brings you more convenience during the daily use Use occasions: this basic calculator is equipped with standard functions, like add, subtract, multiply, divide, percent, square root, memory recall, memory clear and so on, so it can be applied in many occasions, suitable for students, office and business