NoiseNavigation automatically assesses the loudness level, pitch and tempo in the environmentDual omni-directional silicone microphones Adaptive noise compensation initiates counter-measures for exceptional speech and sound quality Audio-visual low battery warning Up to 8 hours talk time or 72 hours standby Compliant with Bluetooth v1.2 devices up to 33'Includes 3 RealComfort (s/m/l) ear loops, AC charger and USB adapter
