Brand: Casio. MPN: CIOSL300VE. GENERAL PURPOSE CALCULATOR – Ideal for a wide range of applications, from basic math to business and personal use.   DUAL POWER SOURCE: Operates on solar power with battery backup to ensure reliable use in any lighting condition.   LARGE EIGHT-DIGIT DISPLAY – Clear and easy-to-read 8-digit display, perfect for everyday calculations, ensuring accurate results in home or office settings.   DURABLE HARD COVER: Built-in protective case shields the calculator from scratches, drops, and everyday wear.   COMPACT & PORTABLE DESIGN – Space-saving design that fits easily on any desk or in a briefcase, making it ideal for both home and office use.