Compact Bluetooth communication system, Bluetooth 3.0 technology, 2 participants (ideal for rider and passenger). Intercom compatible with Sena, TFT and GPS systems, Bluetooth connection to smartphone, voice-activated call and redial of last call. Microphones for full-face, modular, enduro and jet helmets, 27 mm speakers, range up to 10 m, active talk time 10 - 15 h, standby up to 700 h, Waterproof IP67, black. Battery standby 700 h Type Item Version Communication system Main colour black Protection class IP67 Transmission standard Bluetooth 3.0