While it is not a perfect fit, a little pressure, or some light sanding of the plastic, fits the microphone tightly into the Corsair HS-35. Definately "enough" arch , which is a must for me and my seemingly high arch. Also around ears is very comfortable, Ive worn other headsets where my ears will literally start sweating and I have to clean my ears like every 30 mins. ?? I was totally surprised how smooth the pen writes. And the price of these far exceeds what one might expect for the quality and workmanship. Its an attractive, adequately manufactured headshell in line with the price. So I was nervous when I decided to try this particular shoe after years of running in the Nike Lunar Glide series, but wow, i?m glad I did it. Secondly it pulled the case up while opening the lid which was another issue for me. However, They do fit a little larger than I expected. The volume and stop/start controls on my headphones also function flawlessly.