【Large Accounting Calculator】Having large size in body and keys, with 5 up/4 cut function, this calculator is especially suitable for accountants，sales or any other business man to use. 【30°Angled Large Display Calculator】Screen of this accounting calculator is just opposite your sight, make all results easily visible. Very convenient for users. Large and separated keys, make your every press more accurate and work more efficient. 【Two Power Solar Calculator】Solar and battery both provide energy for the calculator. It has environmental and energy-saving advantages. When the battery runs off, solar panel will provide back-up enery for you to use the calculator, keep you away from embarrassment. 【Colored ABS Plastic Keys】Made from ABS plastic, this calculator is durable and lighter in weight. Keys were made in different color, help you quickly recognize numbers and operational character. 【Turn Off Automatically】If you don't use this calculator, it will turn off automatically after 8 minutes, prolong battery's life, while reduce power consumption. It is suitable for occasions like school, office, home and supermarket. A good helper for business man.