I love these key finders from #Kimfly because they work great with the app. I am using one of the #keyfinder trackers for my keys, one for my purse, one for my son's backpack and one for my backpack. It works great. It is a #bluetooth #tracker with replaceable #battery and works perfectly. It was easy to set up. I named each one for what I was using them for. It was simple and easy.