The Plantronics Savi W740-M Headset is unique, because the headset can be paired to your mobile phone, computer, and landline phone. With the Plantronics Savi W740-M Headset, you'll be able to take all your calls in one place with 1 push of a button. The Plantronics Savi W720 is a functional and beautifully designed headset, and it has many other advantages besides its appearance. The Savi W740 has a battery life of up to 6 hours and a range of up to 120 meters from the base station. Plantronics has also equipped the Savi W740-M with the latest technological highlights for the best call quality. The Cat-iq technology and DSP technology, for instance, are both present on the Savi W740-M. This ensures good and natural sound quality during phone calls. As a result, the Plantronics Savi W740 Headset is a practical headset with a great call quality.