فَجَعَلْنَـٰهَا نَكَـٰلًا لِّمَا بَيْنَ يَدَيْهَا وَمَا خَلْفَهَا وَمَوْعِظَةً لِّلْمُتَّقِينَ ٦٦
And We made it a deterrent punishment for those who were present and those who succeeded [them] and a lesson for those who fear Allāh.
Your location stays on this device and is only sent, rounded to about 1 km, to fetch the times.