Connects To: For someone that needs to take and receive calls on a mobile phone. Ideal For: Mobile professional who relies on mobile phone for on-the-go communication. Audio Performance: Crystal clear Bluetooth audio quality with triple-mic active Digital Signal Processing (DSP), & wind canceling. Talk Time & Roaming Range: Up to 7 hours of talk time and you can roam up to 98 feet (30 meters). Global Warranty & Wearing Style: 1 year warranty U.S. For global warranty visit Poly.com; light weight over the ear headset.