12-DIGIT LARGE DISPLAY: 12-digit calculators are quite useful for most calculation problems in life and work. Large display with a 30° tilt angle allows for clear viewing from any angle. DUAL POWER SUPPLY: An AA battery and solar panel ensure the calculator works even in dimly lit conditions. Auto power off (after 10 minutes of inactivity). LARGE BUTTON DESIGN: Made from new durable plastic material, the calculators feature an ergonomic button design that aligns with human usage habits for comfortable operation. ANTI-SLIP DESIGN ON BOTTOM: Equipped with anti-slip pads, it remains stable during operation. Ideal for home and office use, performing basic mathematical operations and various financial functions. DUSTPROOF STORAGE BAG: Includes a storage bag for office supplies, convenient for storing and carrying anywhere, anytime. Keeps the calculator and items clean for extended periods.