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.