I looked and Ali Express does have two 5.8 GHz wireless systems though. They look different though and neither is less than what I paid for the unbranded Carvin. I wouldn’t be surprised if they both aren’t decent. It is the crowded 2.4GHz band that is the problem, not Chinese design and construction quality.
http://s.aliexpress.com/ruaeQviy
http://s.aliexpress.com/iyq6BRjQ