"American companies must step up their efforts, or get left behind," the president tweeted.
On Wednesday, the notification system will send a push alert and vibrating tone to every wireless phone in the country, with "Presidential Alert."
The EQ-Radio device could be used in entertainment, for studying consumer behavior and in healthcare, researchers say.
Science says electromagnetic hypersensitivity doesn't exist, but that's cold comfort for those debilitated by its symptoms.
Tables and lamps equipped with wireless charging pads which boost mobile batteries without cables.
Experiment exposes the risk of accessing public Wi-fi