Changing the Mic Membrane
The G8's mic membrane may accumulate dust and debris, which can cause people to not hear you when using Push-to-Talk (PTT). In this case, Blackline Safety recommends changing the mic membrane.
You need the following to change the mic membrane:
Spudger pry tool
Mic membrane replacement kit (ACC-G8-MSFK-XXX):
Mic membrane
Mic label
Note: The mic membrane replacement kit (ACC-G8-MSFK-XXX) also contains a speaker membrane replacement kit. It is recommended to change the speaker membrane and mic membrane at the same time. For details, see Changing the Speaker Membrane.