It operated by pressing three butto

It operated by pressing three buttons at the top and a sort of hinged switch on the body of the guitar.

Results (Chinese Traditional) 1:

它由三個按鈕在頂部和一個種鉸接的開關按吉他的身體。

Results (Chinese Traditional) 2:

它操作按頂部三個按鈕，並在吉他的身體一種鉸鏈的開關。

Results (Chinese Traditional) 3:

它由三個按鈕在緊迫的頂部和一個類的鉸鏈式開關在該機構的吉他。