Anyone tried Popori Acoustics electrostatic speakers ?

[R1c0c0]

Looks interesting. Would sound engineers ever use electrostatic speakers for mastering ?

https://poporiacoustics.com/hu/home-3/

 

[JktHifi]

It’s already invented a year ago:

Researchers develop a paper-thin loudspeaker​

The flexible, thin-film device has the potential to make any surface into a low-power, high-quality audio source.