Features: Dual-power source: This electronic digital calculator supports battery and light energy power supply. If the battery suddenly runs out, you can switch the power mode to continue using the calculator, which brings you more convenience. Practical product: Bright colors and reasonable button design make this compact handheld calculator, which is easy to use and carry as well as store. This basic standard calculator is useful stationery for home, school and office, also a fun gift for friends and kids around you. Specifications: Material: ABS plastic, electronic components Size: 4.7 x 2.7 inches/ 12 x 6.8 cm Color: as pictures show Digital display: 8 digits Power source: button battery, light energy Package includes: 2/4 x Calculators Easy to read: portable calculator with large 8-digit LCD display, clear and high visibility, allowing you to see the numbers at a glance. Easy to carry: the size of the calculator is only 4.7 x 2.7 inches, which is small and lightweight, easy to store in drawer or put it in the school bag, briefcase for carrying; Suitable for home, school, office use. Quality and appearance: basic standard calculator is made of durable ABS to ensure normal daily use; The candy-colored design and reasonable button layout make it beautiful and practical. Dual power supply: electric digital calculator has dual electric drive, light energy and button battery; It can switch the power mode according to the environment, which is more durable and more convenient. Clear and large keys: portable calculator has high sensitivity and quick response to the keys, which improves your work efficiency; The numbers on the keys are not easy to wear and can be applied for a long timebe applied for a long time.