The Casio SL-300SV Handheld Calculator features a large 8-digit LCD display, essential functions like square root, percentage, and +/- change. It includes a 3-key memory, dual power (solar and battery) with auto power off, a protective wallet, metal casing, and non-stick plastic keys. This pocket-sized calculator is designed for ease of use and readability, making it suitable for business and home needs.