Moving this and turn around, you can see the back 2 points longer than the front. 2 points. So basically, it comes down to the trigonometry. It creates a triangle. And the direction as I move around, and I think I heard a beeping sound, it gives a fair idea of which direction she is. And, so if I point to the direction I heard the signal, move around slightly just…toward direction and then whether GPS …. she downloads roughly about twice a day to give us ideas where direction is movement etc., etc.