The battery compartment spring has corroded and broke off (see photo) so a battery connection an not be made. How severe the corrosion is on the other contact terminal is not visible It does work with mains power and I used a Universal AC/DC adapter on 9V and it works fine (not included and buy a reverse polarity adapter or dedicated adapter ) Cosmetically it’s good with only a few marks and scratches The voice sampling works as do all of the effects. The Headphone output also works but I haven’t checked the line. See photos for condition
