In short, my old set-up used a outside speaker and a hand held mic to transmit.
I since changed to an intercom system. Both driver and co- driver can communicate even when one is outside the vehicle.
Radio communication is voice activated.
Our helmets have speakers and mics.
Fine when you are wearing your helmets. There is a lot of waiting and I like listening to music during that time but I don't want to have to wear a helmet during that time.No stereo system in the truck. No radio, no speakers.
The intercom has "Bluetooth" and I can listen to music through my Iphone but it is not loud enough. Bought a small speaker for the phone.
When it comes to radio stuff I know very little.
The only speakers are in our helmets. I want to be able to listen to music without having to wear my helmet.
I can listen to music through my IPhone( "Bluetooth")hooked up to my intercom system.
Just not loud enough.
Found a small smart phone speaker that will work.
I am glad but it's not mine.
Me and high tech electronic stuff makes me crazy!
There is a bruise on my wrist and I could not figure out why. Remembered it was when I was whacking my Iphone!
I normally have a lot of patience being a machinist.
Last year I kept losing WiFi on my tv. Lost it and threw the remote at it. Oops, there went $500 bucks!