The Talking Liquid Jug is a voice output liquid measure designed for use by individuals who are blind or have low vision. It can be used to measure liquids such as water, milk, or cooking oil. With a capacity of two liters, it measures in ounces, pints, or using the metric system. POWER: Uses one 9-volt battery. DIMENSIONS HxLxW): 9.5 x 8 x 6 inches.