My sons used these to stop their bikes and scooters as they wereb learning and they never managed to do more than scuff them. My baby is 3 months old and had a huge and severe outbreak of eczema due to irritation of lanolin products. Comfortable and true to size! While I was out my husband decided he wanted to move the hooks, so he pulled them off. I would highly recommend products from Symphonized because of this alone. All controls, it should be noted are on the right earpiece and while they may seem small at first, they work like a charm. Fazit: Der Marktführer hat natürlich durch seine enorme Präsenz und ausgereifte Marketingstrategie einen enorm gewichtigen Platz in der Branche eingenommen, doch bedeutet das unter objektiven Gesichtspunkten nicht auch gleich immer das beste Produkt auf dem Markt zu haben. Elevated SurfacePosition the S1 Pro on a surface. Maybe if they added 1 or 2 more wires so the gaps werent as big it would be better, but they are not designed for the 4oz jars at all. This mouse is still working about 3 years later!