but, the strap glue released after little use. And again, as the GSX 1000 is not a unit which excels at anything but its DSP, its would be great to be able to hook it up to much better amplifiers and dacs. Like most headphones they are adjustable for size. But it was missing from mine and there is no way I can contact Amazon support to let them know about this Needed replacements for the Beats, I let my son borrow! Went for 1/2 size larger as per the previous comments. I would suggest these may not be the original brand as advertised? Johnson, who advocated white supremacy and a white yeomen-planter alliance to rule a readmitted south, got his wish in the end. For now I like the make and feel. Very poor in quality and now in the trash.