I received an old cassette recording of my grandmother which I wanted for research I was doing on a book. Because I didn't have one, I began researching portable cassette players. My criteria were reasonable cost as well as workability. I chose the GPX cassette player because it fit the bill. I was satisfied with the reviews I read and felt it would meet my needs. I've used it to transcribe my grandmother's stories for my book. I couldn't have done so without it.