Bluetooth communication system for the Schuberth M1 and M1 Pro. Use the communication system in a matter of seconds with the technology built into your M1 PRO. Simply attach the SC1M to the back of your helmet and enjoy navigation, music, phone calls or bike-to-bike conversations with up to three riders. The RC3 remote control is included and makes using your new communication system easier than ever – you decide where to place it for even more flexibility. The remote control can be stuck to the helmet or attached elsewhere using the universal clip.