It has an average range of about 400 meters and a battery life of about 8 hours - depending on the degree of utilization. The SMH5 is charged via a USB charging cable (Micro-USB), which can also be used for connection to the PC/MAC. Connected to the computer, the SMH5 can be used to make settings and software updates, as well as intercom, navigation devices, smartphones or Bluetooth enabled MP3 players. Accordingly, the user receives his navigation announcements, or even his favorite music directly into the helmet. The one does not exclude the other. Up to 3 communication partners (4 in total - no conference call), a GPS navigation device and an MP3 player/smartphone can be paired simultaneously. The built-in priority control then automatically takes over the task of deciding which audio source is optimal or important at the moment.