SOAR - Talking Calculators
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Talking Calculators

A talking calculator has a built-in speech synthesizer that reads aloud each number, symbol, or operation key a user presses; it also vocalizes the answer to the problem. This auditory feedback may help an individual with visual perception limitations check the accuracy of the keys as they are pressed and verify the answer before he/she transfers it to paper. These vendors may also have large display and big button calculators.