Advanced multifunctional bluetooth communicator developed by SENA, reliable full duplex communication with a passenger or with up to 4 other drivers, Bluetooth hands-free telephony, stereo MP3, voice guidance GPS navigation, best-in-class sound quality, PCB, connection of up to 2 mobile phones and GPS navigation , Bluetooth 3.0, up to 7 hours of talk time, up to 7 days of standby time, splashproof