Test itself daily (green or red)
USB chip with internal memory
Bilingual setting with talk and text
Bipolar Pads
System will check for pad temperature (hot or cold) for affective use
Measure depth, rate, recoil with voice
CPR pads connect in the middle of chest to insure correct positioning
IP55 grade (Very tough)
https://youtu.be/hTfksC-4moE