I started using Cardo equipment but constantly had issues with the two I had and absolutely no support. I switched to using wired Plugphones which were mostly great but a little annoying to deal with putting the helmet on and off and if one slips out and now im using a Sena and im surprised at how much better it was out of the box compared to my old Cardo stuff. Good audio clarity and its more reliable with its connection. Not sure on longevity and ill say the battery life is a little short