There are used hearing aids & a Massive amount of Brand New Replacement Parts. Look at the pictures. Nothing has been tested. Almost all are in unopened in packages. There are other parts not pictured that I will include. You get hearing aids, slim tubes, receivers, domes, wax guards, batteries (some expired, some not) & so much more. Everything pictured is included. If sold separately this would be thousands. I purchased these from a retailer & was going to sell individually. Changed my mind. Email me with any questions. Thanks.