Adjusting the ear stemsThe soft rubber ear stems on Jet's frame can be adjusted to the exact contour of your head for a completely secure and comfortable fit.
Adjusting the nosepieceAdjust the nosepiece so that Jet sits comfortably on your face, with the display just below your line of sight. If you find that Jet is sitting too high or too low, you can widen or narrow the nosepiece accordingly.
Adjusting the displayLocated on the underside of Jet's engine is the display control column, which allows you to adjust Jet's display for optimal visibility.
Before adjusting the display, make sure you are wearing Jet and that the display is on. Then, grip the front of the engine tightly between your thumb and forefinger, ensuring your thumb is on the display control column.
To adjust the display's vertical position, push the display control column forward and back. You should see the image move up and down. To adjust the display's horizontal position, press firmly on the display control column while twisting it on its axis. You should see the image move from side to side. This video shows the correct way to perform these adjustments.