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Talkabout (250), CB radio (Midland 75-820)Shown with battery and running with 12 volt.
I use a Talkabout headset/boom mic ($12) I took apart and mounded in my helmet with Velcro
If you mount an antenna on the bike the best I have found is the Firestik DS-14FG. I also used a firestik AR-1A match maker so I only had one antenna