Vuse ePod 2+ is activated by puffing. When your Vuse ePod 2+ is activated, the white LED will appear. When your puff ends, the white LED will gradually disappear.
If you have locked your Vuse ePod 2+ (either via the button or the MyVuseApp) the LED will light red and vibrate to remind you to unlock the device, no vapour will be produced. Simply unlock by pressing the button quickly three times or unlock from the MyVuseApp (when phone is in range).