ANDROID IGO NNG Navigation Android - How to enable voice to bluetooth

Hello together,

I have another problem. Does anybody know, how to enable the voce for navigation commands to the Bluetooth? I have an Bluetooth hands free on my motobike helmet and I want to hear the commands. It is connected to the phone, but I hear nothing. If I use Navigon on the same device, it works fine.

Version I have is iGo Navigation 9.18.27.693527 from 2017.


Kind regards

Andy