An electrical apparatus has an apparatus main body and an operation panel with operation buttons for the apparatus main body. The operation panel includes a panel base portion having the operation buttons provided on the outer surface thereof, a first sheet written with the function names of the operable buttons in the form of character information dependent on a specific language, and a second sheet written with the functions of the operation buttons in the form of specified visual information not dependent on the specific language. The first and second sheets are mounted on the outer surface of the panel base portion in such a manner that the second sheet is placed on the first sheet and the first sheet is exchangeable. The second sheet is formed with windows for enabling the character information related to the function names written on the first sheet to be seen.