Using the Polaris models from Plantronics, you can easily and cost-effectively add hands-free efficiency to phone systems that already have built-in amplifiers and volume controls. Just plug in the Polaris headset and you’re ready to take full advantage of your phone system’s built-in headset amplification and controls. Like all Plantronics’ products, the Polaris models deliver no-compromise audio quality and ease-of-use. Available in a variety of styles, the Polaris models let you get the most out of the built-in capabilities of your phone system. This headband headset family offers premium performance and comfort. Unique SES tone control system allows users to choose between bass and treble settings. The Encore Binaural headset lets users change the tone of their callers voice. But by providing sound in both ears, it gives even greater clarity. It is ideal for anyone working in a noisy environment who really needs to concentrate on calls.