Brand: Canon Power Source: Solar Battery-powered in low light: Alkaline button battery LR-1130 (will be replaced with a new one.) Number of Digits: 12 digits Manufacturer: Canon 150.0mm (width) x 210.5mm (depth) x 25mm (height) [Brand and Model] This calculator is the WS-1200H model from the trusted brand Canon. It combines high-quality design and durability. [Features and Ease of Use] It has basic calculation functions and a standard key layout with large keys for easy operation. The LCD display angle can be adjusted, and it has high visibility, designed to reduce eye strain during prolonged use. [Design] The simple and stylish design is perfect for use at home or in the office. It is relatively clean, but as it is a used item, please understand before purchasing. There are no smokers in the household. We do not have any pets.