This is a CASIO A158W. It is currently working without any problems. *Battery life is unknown. Please be aware that the battery may be dead upon arrival. The lower left button is a little difficult to press, but I have confirmed that there are no problems with button operation and that the modes can be switched properly. The light also turns on. There are scratches overall due to use. There are no problems with use. Please check the photos for the detailed condition. Only those who understand that this is a used item, please.