Recommended for playing games and watching movies. This is a 6, and as you can see, a 5. I suggest you sand down to add some grip to your stride before wearing these out somewhere. I was grateful for the extra length of velcro strap because my legs kept hitting it as I pedaled so I needed to move it an inch or so forward but the attachment point on my bike was thicker so I needed more room in the strap to accommodate it. Brilliant. Tried it as soon as I got it. DONOT use the screws provided. It is not usable for outside running or biking as it amplifies wind into the ear which makes the listening experience unpleasant. They seem to be helping me with pickle ball and tennis. what they actually cost.