Wearing the headset

  1. Put the headset units into both ears.

    Put the headset unit with the (left) mark into your left ear and the headset unit with the (right) mark into your right ear. The left headset unit has a tactile dot.

    Illustration indicating the location of the tactile dot (A) on the left headset unit

    A: Tactile dot

    Be careful not to push the button when you put the headset units into both ears.

    Illustration indicating the locations of the buttons (B) on the left and right headset units

    B: Buttons (left, right)

  2. Adjust the fit of the headset to your ears.

    Twist the headset unit to slide the earbud tip deep into your ear canal.


  • When you put the headset unit into your ear or adjust the positioning of the headset unit, see the illustration in step 2 for how to hold the headset unit.

For the proper sound quality, noise canceling function, and call sound quality to be effective

If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities, noise canceling effects, or call performance.

If any of this is the case, try the following.

  • Change the earbud tips to ones that fit more snugly in your ears. When changing the earbud tips, try the earbud tip sizes in order from the larger ones to the smaller ones. The most suitable size of the earbud tips for left and right ears may be different.
  • See step 2 and check that you are wearing the headset properly in your ears. Wear the headset so that the earbud tip is comfortably situated as deep in the ear canal as possible.


  • You can also play music, make and receive calls, etc. when only one headset unit is worn in your ear.