8-DIGIT DISPLAY. The pocket-size calculator features an 8-digit display with full function memory. Measure: 4.5" x 2.5" x 0.75". In pretty pastel colors to add elegance to functionality. DUAL POWER. Equipped with dual power options, the calculator operates on solar power and a replaceable battery (AA battery not included). Power mode switches adjusts to the environment for uninterrupted usability. AUTO POWER OFF. Designed for energy efficiency, the calculator has an auto power-off feature. After a period of inactivity, the calculator will automatically power off to help extend the battery life. POCKET SIZE. With its compact and pocket-friendly design, this calculator saves space and can be easily carried in pockets or purses while on the go, at school, or in the office. SIMPLE & STURDY. The straightforward design with a practical button layout ensures ease of use for all. Durable keys can withstand daily use. Performs basic calculations and simple financial functions.