Casio SX-320P-W Portable Calculator (Grey)

Portable Type, Digit: 12 digits, Regular percent: Regular percentage calculations, Two-way power: Two-way power (Solar + Battery) Solar Powered when light is sufficient and Battery Powered when light is insufficient. Key rollover: Key operations are stored in a buffer, so nothing is lost even during high-speed input. Extra Large display: Larger display makes more data easier to read. Plastic keys, Durable metal Faceplate.
Portable type, digit: 12 digits, regular percent: Regular percentage calculations
Two-way power: Two-way power (solar + battery) solar powered when light is sufficient and battery powered when light is insufficient
Key rollover: Key operations are stored in a buffer, so nothing is lost even during high-speed input
Extra large display: Larger display makes more data easier to read, plastic keys, durable metal faceplate