First of all, there is no left or right version, so you can place each earplug in any one of your ears. You can do this as followed:

  1. Slide the included insertion tube over the stem of the earplug.
  2. Slightly pull up your ear and insert the earplug into the ear.
  3. Make a rotating movement with the insertion tube until the earplugs fits properly and let go of your ear.
  4. Gently remove the tube from the earplug.

You can also place the earplugs into the ears without the insertion tube. In that case, you only have to follow step 2 and then let go of the ear.