Yealink W80-DM Cordless DECT IP Multi-Cell System.
I purchased this item by mistake since I needed a W80B and I am passed the return window. This item for sale is a W80DM that would serve as the controller to other W80B units. The EAN number is 6938818305373. I am unsure if that means that this is a Europe version and even if that matters. Please ensure you check to see which version you need before purchasing. I will be happy to answer any questions you have. I have a W80 setup at a large office and it works really well.
sale starting at $1 to ensure I sell it before I forget I have it sitting around.