I have the 20S and love it. Bike to bike intercom is clear as a bell. FM radio works great. Listening to music or audiobooks from phone works great. I guess my only complaint would be the voice commands. That part of the system doesn't seem to work that well, but it may be that I don't understand how to use it. Overall, it is a great system, I use it everyday.
Been running an Autocom for maybe 20 years
Just wondering ???? how long do they go for until the battery goes flat??????
Can they be recharged from the bike on the run???
Is their a need to use the Buttons once going????
And can I plug my 3.5 jack in for my earphones ???