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:
- Slide the included insertion tube over the stem of the earplug.
- Slightly pull up your ear and insert the earplug into the ear.
- Make a rotating movement with the insertion tube until the earplugs fits properly and let go of your ear.
- 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.