Trådfri is valid Danish for "wire free", as far as I can tell. This being said, I don't know whether it's idiomatic. Men min dansk er ikke så godt, så... I th

Trådfri is valid Danish for "wire free", as far as I can tell. This being said, I don't know whether it's idiomatic. Men min dansk er ikke så godt, så... I think it might be a clever IKEA marketing trick: a lot of countries know exactly what it means (I would assume that most of Scandinavia, and the Germanic languages would be able to figure it out). For the others, it's just another random Scandinavian word and orthography to remember.