Product Specifications: Each piece measures approximately 2.7 x 4.7 inches, small and lightweight so you can easily hold it in your hand for use or place it on your deskHIGH SENSITIVITY: This portable calculator has high sensitivity and fast key response, improving your work efficiency; in addition, its spacious button size ensures that your fingers are less likely to press the wrong numberReliable material: The smart calculator is made of high-quality plastic and equipped with electronic components to ensure normal daily use and can be used for a long time; the candy-colored design and reasonable button layout are beautiful and practicalDual power supply: This electronic digital calculator supports battery and light power supply; if the battery suddenly runs out of power, you can still continue to use the calculator, which brings more convenience to your daily useUsage occasions: This basic calculator is equipped with standard functions such as addition, subtraction, multiplication, division, percentage, square root, memory recall, memory clear, etc., so it can be used in various occasions, suitable for students, offices and business