All this functionality is dependent on having a compatible Samsung phone, which has to snap into the USB connector port. It’s a pretty tight fit. If you have a case on your phone, you’ll have to take it off in order to use the headset.
But the bigger problem is that the headset does not work with smartphones from any other company. So if you have any other brand phone, or an iPhone, you’re out of luck. My recommendation? Try the Ling VR from AliExpress.