The BlueAnt Z9i is the follow up to the award winning and highly successful Z9 Bluetooth Headset.The device includes additional box contents and enhanced features. Incorporating BlueAnt's revolutionary Digital Signal Processing solution - Voice Isolation Technology, the Z9i provides outstanding noise suppression, echo cancellation and wind noise reduction. The headset's 'Voice Isolation Max' feature further enhances the user experience in extreme noise environments.Attaches easily and comfortably with ear hook and piece. Simply slip it over your ear for safe and secure wear. Earpiece controls include: call/answer/end, power on/off, redial, voice dial, reject call, call waiting, conference call, and volume control. Microphone includes a mute function. Offers your a maximum 5.5 hours of talk time and 200 hours of standby time. Color is black for a sleek and professional look. Includes a 2 year warranty. Package contents: Z9i Headset, AC wall charger, USB cable, one small earbud, one large earbud, two ear hooks, user manual, warranty card and the easy to use quick start guide.