There are numerous similar looking cheap wireless guitar systems.
Some of the unknown brands might be exactly the same device as those sold badged under more familiar budget priced brand names.

Amongst these Xvive seem to have gained more positive approval on guitar forums.

I took a risk on a massively discounted flash deal on JOYO
(a very well-known Chinese budget FX pedal brand) wireless plugs.
These were too hissy for my liking,
So I never bothered using them again...