Specially designed for Harley Davidson, MCS III makes it possible to hear all the motorcycle-related sounds from inside the helmet. The connection is made via a special, supplied cable, which can be connected to the already installed on the motorcycle audio system. Perfect Integration You will not find better integration: the MCS III was designed and developed specifically to be assembled on compatible Nolan helmets. Installation is simple, fast and user-friendly. The helmet retains its original comfort. Harley Davidson If you own a Harley Davidson, choose the specific version of the MCS III system. The specific wire is included in the box.Tested models:Ultra Classic Electra Glide 2005 - 2007 - 2010 Safety at first Place All Nolangroup helmets pre-set for the N-Com system are type-approved with the communication system installed, consequently they comply with regulation ECE/ONU 22-05. Compatible with the following Nolan helmets N100.5 N104, N104 Evo, N104 Absolute N87 N44, N44 Evo N40, N40 Full N40.5, N40.5 GT N70-2 GT, N70-2 X N70-2 Features Listening in the helmet for all signals coming from the motorcycle Set the volume levels of the radio and of intercom from the motorbike’s audio system as desired For all audio settings and adjustments, please read the manual of the motorbike Audio Features Microphone with noise reduction Speakers with excellent audio quality AUX Input Cable for connection to the motorcycle included in the package Installation Perfectly integrated in the helmet Easy and fast installation by the user Can be transferred from one Nolan N-Com helmet to another (compatible helmets) Weight: approx. 80 grams