I experimented the repeater/extender by buying two cheap different brands of that were USB powered. Both supported dual band WiFi. One of them only worked to control the camera, no fly control. The other didn't work at all.
So I bought the 3rd brand Asus model RP-N54. It is small but it requires AC power. It worked nicely. I flew the Breeze from the backyard with the Breeze wirelessly connected to the RP-N54 that was plugged into the outdoor AC outlet of the patio.
To fly the Breeze near my car, a 12V-115V adapter plugged into the car cigarette light socket powers the repeater/extender just fine.
The Asus RP-N54 can be bought for about $20-$25 on eBay. Setting it up is easy.