Ideal For: mobile professional who relies on mobile phone for on-the-go communication Connect To: For someone that needs to take and receive calls on a mobile phone Audio Performance: Crystal clear Bluetooth audio quality with triple-mic active Digital Signal Processing (DSP), & wind canceling. SoundGuard: Sound leveling for listening comfort and acoustic limiting for protection against sounds above 118 dBA Talk Time & Roaming Range: Up to 7 hours of talk time and you can roam up to 98 feet (30 meters)