By having a RW Central Premium account you can unlock special features in RW Enhancer 2. Those features are:

• Azure enhanced speech voices for PIS systems (train and station PIS systems)
• Azure enhanced radio speech voices
• Radio microphone voice recognition

Theses features are only accessible if you own a Premium account because they cost us some money according to usage of Azure cloud servers used for those specified features.

Thank you for your understanding and thank you for considering to buy a premium subscription.