Hello again Spyder Lovers. We have had a problem with the SM10 for almost a year....I won't relate all of the issues but I think I have narrowed the problem down to the location of the SM10. When it is mounted in the center of the rear trunk, it works perfectly for my wife. My signal seems to come and go and sometimes drops off completely. For a test, I set our helmets on our table, turned on the SM10 and headsets, used a Iphone for music. The SM10 was about 2 feet away form the helmets. It worked great. No interuptions with the signal for either headset....tried on the Spyder and it failed again.....I put the SM10 and Iphone in my pocket....my headset was great and my wife's failed. When the SM10 and Iphone was in my wife's pocket, it was perfect for her but not great for me. Question is, should there be so much difference with the location of the SM10? I will try under the seat, but I am doubtful. Sena have been patient with me but I am getting pretty frustrated. Motorcycle Dave thought I would maybe need to go to Sena 20sEvo. Any thoughts??? Sorry for being long winded.