Ours had stopped working...So happy to be able to find since Cobra employees don't even know what it is...it has been a while since they sold it...but sure worked for what I needed it for...
Perfect replacement for "landline" using existing house phones.
Expected it to have its power supply shipped with it. Disappointing, but fortunately, I had a spare 12VDC transformer that I put the aapropriate jack on the cord and I am up and running. Device itself works fine.