the uclear has the microphone in the ear pieces (and I've seen some somewhat conflicting reports how well it works)
Sena has a small button mike that can be stuck on the the 'chin' bar of the helmet (or use the also supplied boom). I found it an easy and neat fit (unlike the autocom thing it replaced)
Thanks for the link sorry may not have been clear - was looking for a system without a boom or wired microphone such as the uclear system and wondered if any other manufacturer Made one
I have the UClear system with the extended microphone kits - places the mic's in the headlining near your forehead - works great, very pleased with the system.
Just upgraded my ageing C3 with SRC comms to a new C4 with SC1 comms quite impressed with the new set up everything connected without issue. I have also been playing with the C4 universal intercom it connected fine with the older C3 SRC system.