"I was going to look up the transmit power of these based on the model number, but it looks like the XRS 9370 might be a radar detector and not a radio. Is that the correct manual and part number for these?"
My bad I guess I don’t have a manual. They are model PR 955VP. .5 and 2 watt.
https://www.cnet.com/products/cobra-...adio-frs-gmrs/
Manual is here
https://www.fixya.com/support/p13073...o/manual-44129