There's no evidence listening devices were discovered in the Oval Office. A similar version of the claim cites fabricated sources.

In the spy business though, he is known as the creator of one of the most successful clandestine listening devices ever used against the American government. The creation of Léon Theremin’s bug ...

Its not supposed to be listening to you when you havent ... So does Alexa spy on you? “Like phones, Alexa devices probably aren’t eavesdropping on people, but theres little need to do so ...