What is surprising to me is how many people this is happening to in the forums. Likely due to better fit, these also increase the volume. Battery life is pretty crappy as well but that would be acceptable if the functionality was there. The difference in noise canceling ability is most noticeable when working in an environment with reverb. THERE ARE 5 STRAPS 2 IN THE BACK TO HOLD YOUR FOOT IN PLACE. Being able to put my own orthotics in the footbed is really a great bonus. It was easy to assemble with just 4 screws. Fit as expected length wise and if your feet is narrow. This bag holds all of the items I need for a few hours on the courts. My husband loves it!