The BMW communication system for GS helmet has been designed to integrate perfectly with the GS helmet. LEDs on the communication system indicate its status.It is of course possible to communicate via it with 2 Bluetooth helmets (driver and passenger) with a range of 10m in high quality up to 100m (the quality degrades with distance).The BMW communication system for GS helmets contains : - 1 Smart Charger that switches to charge-hold mode at the end of charging to avoid damaging the battery. - 1 battery - 1 main card - 2 loudspeakers - 1 wind protection foam (spare) - 1 control unit with cable cover - 1 main card - 1 mini USB charging cable  - The assembly material - Operating instructions in 9 languages If you have any further questions or require installation assistance, please do not hesitate to contact our BMW experts. Highlights : - Positioned on the left side of the helmet - Full integration - High-end intercom voice quality - Charging time approx. 4h - Allows 2 headsets to be connected via Bluetooth - 10m range in high quality - Version v3.0 - Wireless connection mobile phone, BMW Navigator Navigation System, Audio system - ECE 22-05 approvalAttention, once opened and installed, the product cannot be returned, even if the return period has not been exceeded.For GS Pure helmets you need the ConnectedRide Com U1 intercom. New Communication System V3 for Helmet BMW GS