Sony CRE-E10 Self-Fitting OTC Hearing Aids – Black. headphones have been partially tested. They seem like they work good have but I don’t know anything about them. haven’t tried testing them on the app. Or with Bluetooth. The right ear has a little bit of hard time charging because some times the orange light doesn’t pop up I just wiggled it a bit and it works. Once again, I don’t know much about this item selling as partially tested message me with any questions! In accordance with FDA requirements, this product has been properly cleaned and will be labeled as used upon delivery.”