Drones can be made quieter, not completely silent. There is currently no way to make a drone completely silent, but there are multiple ways to reduce the noise your drone makes.

Did you know about any of these methods?

Thanks for sharing.

Nope. I did not.

Neat idea, the multi blade props are less efficient though, so you are going to have reduced flight time as the trade off. The logos on the props is silly tho, makes me mad they do that. Cheers.

Dont you think mavics minie are silent? just go few meters up and in the city i cant hear them