My father-in-law has a special model, he is nearly blind and somewhat deaf - he is 94. He absolutely needs (loud) audio feedback for every operation and countdo

My father-in-law has a special model, he is nearly blind and somewhat deaf - he is 94. He absolutely needs (loud) audio feedback for every operation and countdown for the timer. I can fully appreciate he would not manage with anything less. [By audio I mean spoken]