It works perfectly and has nothing to envy Plantronics (well, obviously, ambient filtering is less "pronounced" ... plantronics making better substantive work).
The helmet design is very ... we noticing that the light, no wires, made of a single piece (when one does not know he's folding) and headsets go down without a view of the mechanical process employee.
I won! (Good, the price is too ... but I agree, it is a product that really corresponds to the price).
