BlueAnt Z9 Bluetooth Headset with Voice Isolation Technology Product Includes: BlueAnt Z9 Bluetooth Headset; USB charger ; 3 ear Hooks; User manual Winner of a CES 2007 Innovations Design & Engineering Award Different ring-tones for known and unknown contacts. Innovative tie clip for attaching to shirt or cuff, when not in use . Stylish, translucent ear hook Revolutionary Voice Isolation Technology' produces World Class noise suppression, wind noise reduction and echo cancellation, with zero voice distortion Dual microphones for pure speech