The Voyager Legend CS is more than just the basic wireless headset. Taking you from the office to the car to your home- all while you are still on the same call! No one ever has to know that you left the four walls of your office. The Voyager Legend CS was designed with the busy work person in mind. With its smart sensor technology, you can answer calls just by placing it on your ear and enjoy crystal clear audio with noise cancelling technology that you can count on- no wind, car horns or voices! Enjoy easy management of calls that you can take from your cell phone to your desk phone and anywhere in between. With up to 7 hours of talk time and audio reminders of when to charge up, you'll never run out of juice(go ahead and check out the charge case that gives you up to 14 extra hours of talk time).