Or you use the headset without the mixer and go from the headset..via the same cable (as already mentioned above) to the adapter for 3.5 jack and then to your corresponding device...mobile phone,PC...ect....

Hey, a USB port is available as well as an adapter for 3.5 mm jack.
Headset we with a small plug (sits a bit tighter in the headset, so does not fall out and is also not a normal Micro USB, I could not see exactly) and goes from there to the Usb chat mixer...and from there via USB to the appropriate device.

Hi, the connection for the device is USB. The engine is also available for IOS https://steelseries.com/engine
BTW. The wearing comfort is great.