if im tracking a shipment, truck, oil rig, boat, suitcase, ex
i think I could find whatever within 100 feet
100 feet is a small visable distance to find most things

this technology is not great for all things but for many things
the battery life, and 100 feet verses a few feet or inches is more than enough

imagine yourself at a construction sight looking for a crane
would you find the crane

would you care if the crane was not at the construction site it is supposed to be on....