This is a special microphone and speaker system for fitting inside a closed face helmet for use with a handheld.
These can be used with many popular handhelds - CB, PMR446, Amateur, and PMR. This model can be supplied with a choice of 5 different plugs - the standard plug is the one which fits most radios (including Maycom, Yaesu, Alinco etc).
The weatherproof PTT is fitted to the handle bar with a velcro strap.
The microphone and the speakers also fix in the helmet using velcro. It really could not be easier to fit.
There are weatherproof quick disconnects between both the PTT and radio and between the helmet and radio. This allows you to easily connect and reconnect the system as needed.