Ive only used a couple of times and the right ear bud has gone out. I liked these at first, but a few weeks of use has revealed this product to be absolute trash. It was a royal pain to keep straight what was even in there, and if you wanted to drink one you had to re-arrange it all if the bottle you wanted was at the bottom. Die Aufnahme von Mausrädern könnten durch etwas Aluminium statt Plastik deutlich langlebiger sein. I was looking for a good crockpot cookbook and picked this one. actually it is a little too stiff. I ended up putting tiny stickers to make it easy. They last me usually about 5-6 months but my job is labor intensive so thats pretty good compared to all the other shoes out there. These are exactly as advertised and easy to replace. You can take that off and connect to a mic/audio input which most laptop/computers have these days.