Connects to: Mobile devices via Bluetooth and wirelessly to your PC/Mac via USB-A Bluetooth adapter Ideal for: Professionals who need freedom to roam and multi-connectivity Audio Performance: Dual microphones help block out noises for those on the far end of the call Talk Time and Roaming Range: Up to 12 hours talk time and 15 hours listen time. Roam up to 98 ft (30 m) (line of sight) Global Warranty and Wearing Style: 2 years global warranty; one ear/monaural over-the-head headset