- One touch Programmable TAX feature. - Robust model for everyday handheld or desktop use. - Large keypad for easy entry. -Extra large commonly used keys. - Large 8 digit fixed angle display for optimum viewing. - Durable hard keys. - 3 key memory and +/- change sign key. - Mark up for gross profit calculations. - Constants: Addition, Division, Multiplication & Subtraction. - Rubber feet (For desk top use). - Solar powered with battery backup (Included). - Auto power off.