These are single-utility-devices. The only 'app' is talk, which allows you to speak to another human from a long distance. You can do this without having to resort to the obsolete technology of screaming, and having to occasionally throw things. Changes in our communication world have sent old phones to landfills. These pieces however speak to me - excuse the pun - on a different level. I lived in Denmark in the late nineties and since then I have even more appreciation and respect for all aspects of design.