I had a similar problem and discovered that the iphone is a bluetooth parasite. My iphone will mysteriously automatically turn on it's bluetooth whenever it is shut down and turned on again so be aware. Anyway, when I opened my new Equinox 800 and turned on the headphones playing around, they must has paired with my iphone and I never knew it. One week later I was in the field and tried to pair to my Equinox with no success. I didn't suspect the ML80 was already paired to my phone and I tried everything except the ML80 reset. Once I got home I read this post and the ML80 reset unpaired my iphone. I turned the bluetooth OFF on my iphone then turned on the equinox 800 and waited for the bluetooth to search, then I turned on the ML80s and they paired perfectly.
