Find your keys with just a simple push on the remote. Key finder is a life-saver that can make your life so much easier. Saves you from unneeded rushing in the morning from running around the house looking for misplaced items. Never have trouble again keeping track of your keys, purse, wallet, pets, glasses, TV remotes and more. No need to install APP in the phone, not like the bluetooth key finders which crap out too much