Casio Waterproof and Dustproof Mini Just 12 Calculator, Black, Type, Digits, WM-320MT-BK-N

Number of digits: 12; Dimensions (D x W x H): 168.5 x 108.5 x 33.4 mm; Weight (g): 175 Power supply type: Two-way power (CR2032) Includes cost, selling price, and profit margin calculation functions that are convenient for business Waterproof: Equivalent to JIS IPX4 (splash-proof). No harmful effects even if splashed with water. Dustproof: Equivalent to JIS IP5X (dustproof type) Dust will not enter in amounts that would impair the normal operation and safety of the product.