The fit of this head phone is a little different than others that I have used. As you can see from the picture, it hangs over your ear. It does not fit very tightly against your ear. That lets the noise around me mingle with the earbud's sound so it is not very clear. The volume control you see in the photo can be used to increase the volume in the ear piece. The result for me was to make the sound louder but not more clear. The loose dangley fit never seemed comfortable to me.The sound listeners hear coming from the microphone can be adjusted by sliding a micro switch to one of three levels. The highest level is not adequate for some phones and people I called had trouble hearing what I was saying. You need to try this headset with the phone you want to use it with. It will work well with some but not with others. You may want to consider the return policy of the seller and the shipping charges involved.