Deal Detective
The most common transmitter used for battlebots and this is the one to buy
Everybody seems to buy the Flysky FS-i6 for the 1 pound battle bot competitions. It's the go-to transmitter because it just works. I researched quite a bit, because there appears to be many manufacturers who use the Flysky name. I purchased this one because the brand is listed as FlySky. I'm not even sure if this is important, maybe there are all the same? It worked right out of the box. For battle bots, you may need to change some of the sensitivity settings and stick controls. I found this to be confusing, but there are many videos available that helped me get it right. I didn't win the competition, but that's because I'm a lousy driver! This transmitter is a good product.