I'm using that $20 Bell wireless from Wal-mart. It works decently well, but seems pretty laggy when you accelerate or decelerate. I don't really like the round shape though, seems bulky. It's also pretty susceptible to interference (as with most wireless computers), for example when I'm stopped at a stop light, the computer usually goes crazy saying I'm going 40MPH because of the interference from the stop light sensors in the ground. Overall though, it's pretty decent if you're looking for a basic, cheap wireless computer. Oh and it has temperature too which is kinda nice.