New Roger In microphones come with 2 roger licenses.
If you buy second hand , you can not know if the licenses are in the microphone. Perhaps the seller can tell you. Maybe the seller does’nt know this either.
But with Roger In microphones you can recover/obtain more licenses within the microphone using the Phonak Roger Upgradersoftware.
see
recovered licenses with a Roger Select iN microphone using Roger Upgrader