Very forgiving of that high instep and large ankles. Update: after more hours of music enjoy I feel pretty satisfied about basses depth and character, very well defined and power basses just as I like. But, the advertising/promotion of their sandals needs to be accurate. Livid that I?ve wasted my money! Amazing sound, the base, even when low adds a cinematic sound to the experience. This part came assembled from the factory. Sits on shoulders, you can hardly notice its there. however, i do not have charge times to provide, but the time does not exceed an hour. But I am watching! and they appear to work just as well as the bunny eared ones so far.