Dotterel shrouds for mavic 3 drones?

[johndrone33]

I just saw this on youtube:

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Thst sound on the drone is redused so much it sounds less than my mini 3.

Anyone knows where i can buy this?

 

[HoozierDroneDaddy]

That video was from 2019.
Looked it up. Made by

Dotterel Technology - Noise Reduction

Dotterel's award-winning passive noise reduction UAV propeller shrouds offer next-level optimised design as well as fully customisable options. Dotterel's noise reduction and safety shrouds reduce noise created through the complex interaction of many mechanisms

www.dotterel.com