... computers, calculators, telephones, electronic and toys . One.Piezo Ceramic Element Applications1. For sound making:Clocks,Calculators,Telephones,Washing machines,Various ... Handing Notions:1,Please do not touch the component with bare hand because electrode may be corroded.2,The ... in our factory. 2, Features of our products is with extremely clear sound, stable performance , good looking, high ...