... applied for variuskinds of microwave ovens, computers, calculators, telephones, electronic and toys . One.Piezo Ceramic ... Element Applications1. For sound making:Clocks,Calculators,Telephones,Washing machines,Various(Burglar alarms,etc)2 ... of alarms, satellite receivers , microwave ovens, computers, calculators, digital cameras, electronic dictionaries, ultrasonic planimeters, medical devices ...