This item has been tested. It does not include a power cord but I did test it with a cord from another unit. I also tested it with batteries works that way as well . The battery compartment has some rusty crusty . See pics.

Both cassette tape units have been tested . And work .

The left door needs help opening. The mechanism is broken see pictures.

The right side tape is missing a button but operates as normal.

Could use a detailed cleaning.

Those are the issues I came across during my inspection. I didn’t test all the other buttons or slides .

I will happily sent more pictures or answers any direct questions.

I’m not knowledgeable about electronics.

Priced accordingly.