awful. Best buy Ive made in a long time. I have received many compliments about my spice jar organization. Anyway, just received these and these are comfortable as all get out on the bottoms of your feet. I sought out replacements but there were none in US especially of BTS purple so I contacted Customer Service at NEWCELLPHONE for suggestions. 2) Mic qualityThe mic is actually pretty clear especially when compared to Steel Series clear cast mics. The best wireless setup i have ever seen on a headphones! I had an extra piece of silicone material I cut to size to add to the diameter thickness of my weird handlebar diameter for this bike holder to clamp around. I really liked this case originally. Its exactly what I needed.