I use my Sennheiser MB Pro 2 headset daily, often for most of the day. This pad doe not have the lip on the bottom portion (the opposite side of the slit). Im not sure if its the mechanisms failing or the straps just stretching with the first use and higher speeds. Like a lot of people Im not keen on my own voice and was, pehaps, expecting too much. I wanted a pair to keep in my car when I went walking. The straps kill my shoulders so uncomfortable ! So, if youre like me and have a pet with chronic ear infection problems (this stuff can be used on cats and dogs), then GET THIS STUFF. They have the same control as the Touch Micros, but are bent out so the entire face of the bud is exposed and very easy to control. Great sound quality and mic quality and also surprisingly comfortable for a cheap headset I enjoy using this body wash from Dove.