Device for converting price in one currency to another has microphone to receive value for conversion and loudspeaker for reproducing voice synthesized result of operation

摘要

A microphone is used to receive a value for conversion. A loudspeaker is used for reproducing result of the operation. A potentiometer is used for regulating of a volume, of the button of setting in service and initialization of the operation by switching on a voltage. An Independent claim is included for: (a) a method of converting currency values