Very off topic, but from just reading the product name, mosquito repellant, I would never assume it was a smart home product, but rather from the summer range.

US consumer rights standard, I believe. Some freedom they have over there. Should be US only warranty, as it is illegal for all of the rest of the western world at the minimum. Norwegian law is minimum 3 years - 5 if it’s expected to last for a long time. Less than a month is a liability parody.