I’ve had one for a couple of years. It’s about the size of a AAA battery split in half. If I feel anything funny with my heart, I put my little fob up next to it, press a button and it “marks the spot” on the recording and the doc can zero in on that time on the recording to see if there was anything to be concerned about.
It was implanted at the end of en EMG procedure on my heart.
I have one too,to watch for afib.
