Id probably replace these every 1-2 weeks due to the nature of foam and its de/compression rate. good deal gls 8900 Stand 07. I even found ehow & YouTube videos on how to do it. gls 8900 But that blue led light in the switch was still shining bright. gls 8900 Sometimes it works, sometimes you need to rattle it (like an old tv) to make it work. But hey, you get what you pay for. Overall I’m happy with them as long as they can handle my workouts. gls 8900 The Sennheiser’s get louder than the Bose and Sony’s and don’t distort at max volume which is a plus if you like to listen at those volumes. I consider my head size to be average and I still have to extend it all the way in order to fit my head just right so if you have a larger head than normal, it probably wont fit.
gls 8900