Sena in my opinion is by far the best Bluetooth option for versatility and compatibility but find myself on the verge of possibly buying a competitors unit due to it being all installed inside the helmet. This is preferred due to it being discreet and most importantly not creating any unwanted wind noise over the unit. I currently have the SMH10 and is a great unit but too much wind noise and aerodynamic changes on the external of the helmet. Please tell me there is an option like this in the pipeline.
Bluetooth without external helmet clamp