apple tags not working

They won't track even in my back yard. They only appear in my house, and even if I have my husband carry them down the street they don't move in "my tracker".

I wanted them to help find a lost pet, even got the pet collar silicone sleeve. It is useless if I have to have my phone near them.

Why don't they work like Tile, worked. I could find things far away with Tile w only Wifi near by. Very misleading in the materials that convinced me to buy a four pack.

Very disappointed.