Espion Vape Kit by Joyetech. Espion Mod and ProCore X Starter Kit. Hardly bigger than the two 18650 batteries (not included) that power the device, the Espion mod features a 1.45-inch custom colour screen, six top-line modes, and three TCR memories. Along with a stylish 200 Watt mod, this superb vaping starter kit also includes Joyetech’s versatile ProCore X tank. The 2ml ProCore X tank.