Solar Powered Calculator Large Display And Buttons Clear Large LCD Display For Office School Home And Business Use Product Parameters: Product name: solar calculator Material: ABS Colour: White Display digits: 8 Power supply: built-in button battery + solar charging Product size: 5*2.8*0.27 in / 12*7.2*0.7 cm Package Size: 5.82*3.18*0.55 in / 14.8*8.1*1.4 cm Net weight:0.17 / 77.5 Gross weight:0.176 / 80 Product Description: Double power supply design: powered by both solar energy and built-in batteries, ensuring continuous use in variety of environments. Whether in sunny outdoor or indoor environments, it can maintain stable power supply, greatly improving reliability and flexibility Large Button Design: Designed with large buttons for ease of use, it is particularly suitable for prolonged use or for users with poor hand dexterity. The large button reduces misuse and improves and efficiency Clear and large LCD display: Equipped with clear and large LCD display, the display is clearly visible and the results can be read clearly even in poorly lit environments, enhancing the user experience Multi-scenario use: Suitable for office, school, home and commercial use. Whether in the school classroom, office work, daily home or commercial situations, can meet variety of computing needs Portable and rugged: Compact and lightweight, easy to carry without occupying space. Meanwhile, it is made of sturdy materials with stable structure and long service life, ensuring stable for long and durability Item List: Solar powered calculator *1 Double power supply design: powered by both solar energy and built-in batteries, ensuring continuous use in variety of environments. Whether in sunny outdoor or indoor environments, it can maintain stable power supply, greatly improving reliability and flexibility Large Button Design: Designed with large buttons for ease of use, it is particularly suitable for prolonged use or for users with poor hand dexterity. The large button reduces misuse and improves and efficiency Clear and large LCD display: Equipped with clear and large LCD display, the display is clearly visible and the results can be read clearly even in poorly lit environments, enhancing the user experience Multi-scenario use: Suitable for office, school, home and commercial use. Whether in the school classroom, office work, daily home or commercial situations, can meet variety of computing needs Portable and rugged: Compact and lightweight, easy to carry without occupying space. Meanwhile, it is made of sturdy materials with stable structure and long service life, ensuring stable for long and durability