Im not very picky about the sound, so you might think differently if you are really attuned to the music. Perhaps its just my foot type that is the issue. 5 size up to a 9 or your toes will be over the ends of the shoe. Not a huge deal but if you?re not careful you can definitely scratch the rails and roof. Craftmanship is exceptional. Other wireless headset worked fine. That?s so cute shoes. I also love that they are sturdy and enclosed enough to run in like sneakers, which made them perfect for summer camp where he both swam and ran around daily. Hope this helps someone else trying to compare the Tirra and Verra models. I spoke with and provided customer service with a video of the malfunction and they immediately replaced the headphones with a new pair.