rFinder

Got a few and while I read the other reviews & was very leery, I haven’t had the same experience. Exact opposite actually. My suggestion would be to ask or google instructions if yours didn’t come with any. It’s a very easy set up and great little device to throw in your kids pack pack or keys (just wish it would’ve come with some type of adhesive)

Tracker Another waste of money

This app has no instructions. I bought the sensor for my dogs collar in case he got lost. No instructions. Waste of time and money.