Review on YS Wireless Waterproof Bicycle Speedometer & Odometer With LCD Display & Multi-Functions - Track Your Ride! by Prem Reyel

After 5 months, I wanted to return this, but the window for return has closed :-(It works so so. At first it seemed to work, but sometimes I questioned the mph hitting compared to my Sigma speedometer on the other bike. Sometimes the data seemed questionable.After the bike sat in the car, around 40 degree temps, the speedometer stopped working. Brought it in the house, and it worked on the next ride. But then 1/2 the time, it wouldn't register the speed. Super annoying.Never had an issue with my Sigma in 10 years. I guess you get what you pay for. I bought this cause the price seemed reasonable and could get it to my house quickly when I needed it. But the quality and endurance was just not there for me :-)I'd keep shopping. And a bummer, that is exactly what I am having to do now. Again :-(