We install the Sena Smh-5 in several of our half helmets. Some brands do work better when installing speakers and microphones.
The Sena SMH-5 FM will pair to 3 other riders. You can tap on the Jog Dial once to talk to Rider 1, twice for Rider 2, and 3 times to talk to Rider 3.
The Sena SMH-5 FM works best with SMH5- FMs or other Sena Bluetooth Headsets.