These microphones are recommended for use on Encore Partyline equipment which has a screw-in collar that needs an allen key and a hex screw.
These can also be used on I-Station & ICS panels.
These microphones are recommended for use with I-Station & ICS panels only and these panels don’t have a screw-in collar. Therefore, the hex screw and allen key is not needed.
The GN microphone produces a higher output level than the GM microphones.