$200 energizer free Bravo Electrostatics?

http://www.bravoheadphones.com/
Im confused about this product. How does it worth without an energizer unit?
It just plugs into your phone, no other power needed.
And only $200?

Is it like, supremely awful? I cant imagine it working out well.
These "handy" graphs dont inspire much confidence, with completely different scales....


Thoughts?

 

Ahhh, I think this was mentioned in another thread...I'd save my money..."10X better sound quality" better than what?

 

10x better than silence I would presume.

 

So 10x better than 0 is still 0. So they are silent.

 

They're so good they can multiply by zero.

 

Disclaimer: I have no knowledge other than what I've elsewhere read. I've never heard a pair of these.

It appears to not be strict electrostatic, in the sense of charged plates,but an electret. This has an electrostatic charge so technically the name is true, but it should more properly be called an electrodynamic.

LF driver is a conventional dynamic driver
HF is an electret

Further reading:
the-gadgeteer.com/2016/07/30/sharkk-bravo-hybrid-electrostatic-headphones-review/
Here’s some techie info from Sharkk: The Bravo headphones come with what is called “Electrostatz technology”, an ultra-thin film sandwiched between two metal plates. To achieve this, Sharkk successfully developed the Electrets-electrostatic Flexible Loudspeakers (EFLs) to be driven by an electric field without an external DC bias. Unlike the traditional Electrostatic headphone, Sharkk utilized the innovative design of using nano-mesoporous electrets to substitute the conventional ESLs’ diaphragm, breaking through the external DC bias constraint of ESLs.”