Calculated Industries 3405 Real Estate Master IIIX Real Estate Finance Calculator Financial calculator designed for real estate and mortgage professionals. LR44 Batteries Required, Best with Polaroid LR44 Batteries. Complete taxes and insurance for PITI payments; automatic sales price and down payment calculations; more Plastic back, aluminum front, soft rubbed buttons Includes 2 3-volt lithium batteries, pocket user guide, quick reference guide, protective slide cover 5-1/2 by 3 by 0-1/2 inches; display dimensions 0.86 by 2-1/2 inches; 3.2 ounces; 1-year warranty