Vortez takes a look at the Sennheiser GSP 670
A quote from the article:
The GSP 670 follows the same design focus as the GSP 600, meaning no RGB and while ditching the wires and attempting to make cable management that little bit easier however this doesn't come without downsides, the headset is only compatible with PC & PS4 rather than all consoles however it also features Bluetooth 5.0 connectivity to enable you to connect to smart phones & tablets.Sennheiser GSP 670 Review