فَإِنَّكَ لَا تُسْمِعُ ٱلْمَوْتَىٰ وَلَا تُسْمِعُ ٱلصُّمَّ ٱلدُّعَآءَ إِذَا وَلَّوْا۟ مُدْبِرِينَ ٥٢
So indeed, you will not make the dead hear, nor will you make the deaf hear the call when they turn their backs, retreating.
Your location stays on this device and is only sent, rounded to about 1 km, to fetch the times.