the Solar Calculator Student Dual Power Supply is the Perfect Tool for Home & Office Use, Offering Precise & Quick Calculations for a Variety of Tasks. Featuring a Large, Easy-to-read Screen, Its Ideal for Managing Finances, Accounting, & Everyday Math. Powered by Both Solar & Battery, It Ensures Reliable Performance in Any Lighting Condition. with Versatile Functions Like Basic Arithmetic, Percentage Calculations, Tax Functions, & Memory Capabilities, This Calculator is Designed for Efficiency. Its Durable, Compact Design & Ergonomic Keypad Make It Both Practical & Easy to Use, Making It a Great Choice for Professionals & Students Alike.