Question about EPOS Game Zero

I found out about the impedance of the device on the internet. Apparently the older G4me zero has an impedance of 150 ohms (which is a lot and probably needs an amp), the new Game zero has 50 ohms. Digitec states 50 ohms for this product, but uses G4me zero in the description, which has 150 ohms. Which is correct now? Thanks for the help!