This is an electronic memo released in 1989. It has a phonebook function, a schedule function, and a calculator function. The phonebook and schedule functions are decent, but the calculator function has a 10-digit memory function, so I think it can be used as a regular calculator. It works at present, but since it uses a CR2016 battery, it can be obtained at Amazon or home centers even if the battery runs out. PA-375, original price 5000 yen, 160 entries, 108x68x7.2mm, 77g This is a used item. Please refrain from purchasing if you are sensitive to such things. There is no box.