Olympus Pearlcorder S710 microcassette recorder. The recorder has been tested for power. I don't have a microcassette to test if the recorder plays at a proper speed but it does play, fast forward and rewind. The battery terminals show now signs of battery corrosion.

There is a crack on the cassette door and the plastic has been pushed inwards there. These can be seen in the last 2 pictures of the listing. I don't know if it affects putting a cassette inside.