Originally Posted by
mstateglfr
I use it with a garmin gps. it can work on a phone with the garmin app. notification is an audible 'beep', a little moving dot that represents the approaching vehicle, and side colors that turn a light shade of red and turn green once the vehicle passes.
I use it with my garmin watch which I strap around the handlebar. Alerts you on how fast a vehicle is closing and if there are additional vehicles behind them. Double beeps and turns deep red on a high speed approach.
I enjoy that on most rural roads you can take the entire lane with confidence knowing that you have plenty of time and awareness to adjust for the occasional vehicle.