BlueAnt Z9i Bluetooth Headset (Red) [Retail Packaging] BlueAnt's patented Voice Isolation Technology provides outstanding noise reduction and echo cancellation Can switch between two Voice Isolation modes-- Standard and Max Multipoint functionality allows you to connect to two phones at the same time; pair with up to 5 devices Up to 5.5 hours of talk time, up to 200 hours of standby Includes: Bluetooth headset, AC charger, USB cable, 2 ear gels (small, large), 2 earhooks, user manual