Some sellers on Offer up and Craigslist are selling Amazon branded electronics like the Echo Dot, Echo Show, Amazon Recast as new or excellent condition with one caveat . The items have been reported lost or stolen and you cannot use them because they are blacklisted with Amazon. I recommend if you are suspicious about a purchase of one of these products or just want to play it safe just contact Amazon prior to purchasing the item with the Serial number and they can check the status for you. At the bottom of the website look for the help section and contact them by chat or phone.