This adapter is used when connecting a Peltor compatible helmet to a Stilo WRC intercom.
 
Compatible with the following Stilo Amplifiers:
WRC 03
WRC 9v
DG-10
DG-30
 
These are not compatible with the Stilo Trophy range of intercoms. 
 
To connect a Stilo Helmet to a Peltor Amplifier, you need adapter AC0201. 
 
Using these adapters does not guarantee compatibility between the amplifier and helmet, but being original Stilo equipment, it is the most likely to work!