I have the ml 80 headphones for my vanquish 540. Pretty useless on a windy day. I am using an adaptor and using my very old wired whites koss headphones. A definite improvement.I have them. They do not block wind noise. Tree branches hitting them are loud. Even a coat collar rubbing aginst the headphone housing is annoying. Not made for people with smaller skulls. In fact, I just got some over ear wired headphones to replace the MLs.
