I use the article in the basement on the treadmill to watch videos while I'm training. For the head higher is really great. It sits absolutely firmly in the ears, without pressing too hard. An hour can carry it easily. He can also be well cleaned from welding and can be used for so long. Outdoors I have some doubts with the application, because ambient sounds are very well sealed off. This is perfectly on the treadmill can while running near the street noise ever be dangerous.
For my application I can recommend the article completely.
