I have the SENA SMH10 system for my helmet. A friend of mine bought 2 and gave me one. I used it for about 2 seasons and decided to swap it into a new helmet. During the process I wasn't careful and pulled the mic wire out of one of the connections. It looked like a simple fix for a skilled electronics tech. So I emailed SENA to ask where I could take it / send it to get the connector fixed. Long story short, I received a warranty return authorization to send the clamp unit back to SENA and they sent me an entire new Clamp Kit! In my emails back and forth with SENA I was very open that I broke the thing and it was my fault and not a defect of the product. I even told them if there was charge to get the thing fixed I would happily pay. They asked me for a copy of the receipt, to which I told them I did not have and I was even truthful about how old the unit was. These guys have my business for good.