There is not. I thing think the only difference is that the S-500 types are moisture / sweat resistant. Clear male and female vocals. 39 inches- not the 0. They pick up in a large circular patter behind the microphone. My older Turtle Beach AX420s were getting a little worn and saw these were coming out so figured id check it out. Im a slim male with size 10 feet. Techmaster PEB ? BassgasmChris Stapleton ? TravellerDonovan ? Beat CaféChristian McBride ? Live at TonicPink Floyd ? Dark Side Of The MoonGustav Holst ? The PlanetsAudiolab ? Audio Test TonesThe first thing I wanted was something that matched my listening preference as noted above. Akward opening for foot, more like a sock. My dad hangs his ambulance uniforms on it for easy grab-and-go.