Installation was not easy, but after watching about the factory video and videos from three other people, I worked it out to my satisfaction.
ITs a clean install and I like that nothing is external.
It works fine with music and phone but I have not used it as an intercom yet.
having started riding when wild gesticulations and shouting were the only forms of bike to bike communication, I was reluctant to go with bluetooth headsets. but a group ride in an unfamiliar country triggered the purchase. all unanimously noted that having headsets was the best idea of the trip. these units allow multiple rider connection; this is a little cumbersome, however, and takes time to learn. at times we had to settle for 3 of 4 riders connected at the same time, dropping one to add another (more than likely user error). sound is very clear; volume is quite good, even with ear plugs. install and set up is fairly quick. units are very durable. charging life is good for an average day on the road. but it fails quickly and unexpectedly when it loses charge. music and verbal texting good; mic location behind chinbar still good at fwy speeds. range was not great, but acceptable.
I bought these because the wiring in my SMH5 went bad, the replacement parts fixed the problem, however these speakers are definitely not as loud as the standard SMH5 speakers. They don't work on the freeway at all, my passenger literally has to yell, and even then I can't completely understand her.