They're Earmor M32 Milpros and I'd hesitate to call them standard issue as the PLA is currently adopting an in-ear hearing protection/commo solution that has seen at least 2 revisions thus far and PLA artillery personnel have been fielding their own active earpro for awhile now which includes older MSA models/clones.What headsets are these? And are they standard issue or only for specific units?