Gyro mode can be tested on Mobile Device (gyro enabled)
If you want to know the difference of 2 way and 3 way in gyrMode. Please reference this Guide
var container = document.getElementById("myPanoViewer");
var panoViewer = new eg.view360.PanoViewer(container, {
image: "./equi-car-inside.jpg",
projectionType: "equirectangular"
});