For Open Face and Full Helmets BTGO UNI is the all-in-one system, not just for pilot-passenger conversations, but also for motorbikes. All in Full Duplex mode, with digital quality and DSP system for noise suppression. With BTGO UNI you can listen to/manage music in stereo, make and receive phone calls, talk to the passenger or bike to bike up to 200M. BT GO UNI is powered by a lithium battery, able to keep the device active for hours and hours. The charging time is about 2 hours.