Summary: Finding a good adjustable ear bud for daily exercise has been rough. They all promise comfort and stability but not all deliver . I would give this product a "B", it functions reasonably week, (I've had it for a short time) although keeping it on my head tends to be a task.
Pros: The sound is great and the volume is adjustable
Cons: The tightening part of the ear buds loosens with use.
Summary: Great for cycling, running, lifting, but to take on and off can be confusing. Battery life was acceptable, for a 3hr workout with smartphone operational. Price was ok, but it doesn't come off!
Summary: I would recommend this product. I enjoy using it during long walks. I like to be able to answer my phone and listen to my audible books while not worrying about missing the call. It is comfortable around my ears for easily an hour.
Pros: Stays well around the ears and isn't too bulky.
Cons: I had a hard time with the skip forward button.