"macheat" ...Does that name arise from a computer, or "the Scottish play" by The Bard ?
(BTW, your written English is far better than that from many native speakers !)
...Maybe the XD-V55HS "Tan" is the right thing for me. (I admit to being always frightened by the fragility of these headsets ...
That model would be a superb investment, in my opinion, ...as it's been my experience that anything of comparable ruggedness and performance costs at least double the price of a Line 6 XD-V55HS.
As to "fragility", ...in common with most headworns of this type, the Line 6 headset's armature has reaped the benefit of metalwork originally developed for the spectacle industry, (eye apparel, rather than the "spectacles" in which you have a role) because it's made from the eyeglass industry's special "bend and re-bend" alloy. That makes it much more durable than it looks.
The only note of "caution" that springs to my mind is that the mic itself is omnidirectional, which means it relies solely on its nearness to the mouth for gain before feedback from loudspeaker systems.
Some catalogs have incorrectly stated that it has a cardioid pickup pattern, which would be the better type to use whenever there's a need for loud foldback, such as for drummer vocalists and the like.
It's been our experience, however, that the XD-V55HS is superb for most speech applications, with only the quietest voices requiring care in locating speaker systems well downstage of them to avoid feedback.
Also, (having your exact application in mind) I've found NOTHING to match Line 6's brilliantly intuitive "Dynamic Filter" (selectable at the receiver) and "Speech Filter" (pre-settable equalisation in the belt-pack) systems, ...for under ten times the price.
Should additional funds become available, the beltpack's TA4 connector will allow you to also consider vastly more comfortable and unobtrusive options such as this http://www.amazon.co...howViewpoints=1, as I implied in my first reply.
(In evaluating what I say, it's probably handy for you to know that [despite the "Line 6 expert" tag] I've no affiliation with, nor any particular loyalty to Line 6 or any other supplier or manufacturer.)