No Voice Recognition, on car unit NO, on tablet Yes

[rider]

Hi,
Not sure if this is the right place for my problem but I try.

I have installed on my tablet:
iGO Nextgen
9.18.27.687519
Jan 26 2017
skin by pongo
version 31 januar 2018

Works perfect but I was testing if Voice Recognition would work and yes it does perfect.
Activate VR in the menu and there is this VR button on the screen.

I have exactly the same version installed on my Car Head Unit ( Joying DE-JY-UM124N2 ) and
here VR does not work.
When I activate it in the settings menu there is no VR button on the screen.

Just to be sure I deinstalled the iGO Nextgen in the car and deleted the complete iGO_Gift folders and rebooted.
I copied the complete iGO_Gift folder incl subfolders from the tablet to the car and installed the same app as on the tablet.

Everything works perfect except VR. When I activate VR there is no VR button.

Also TTS engines are the same both on the tablet and the car unit.
I can record my voice with the voicerecorder app so the mic works.
Looks like iGO does not find the microphone maybe ?

What am I doing wrong or is this a Joying problem maybe ?