Customization and Comfort – The Quiet Revolution. Now for everyone. S1 DIGITAL S1 PASSIVE The new S1 PASSIVE joins the pioneering S1 DIGITAL When we started the Quiet Revolution, we set out to make it accessible to everyone, ranging from student pilots to experienced aviators. That’s why you now have the choice between two outstanding S1 headsets with customizable comfort features such as adjustable headband tension and sunglass comfort zones. Put on your favorite S1 model: What you’ll get is a quiet environment and noise protection unsurpassed in a headset that offers a wealth of features and is so comfortable to wear. If you just want to experience the joy of flying try the new S1 PASSIVE. If you fly for hours in noisy aircraft, go for the game-changing S1 DIGITAL whose active noise reduction system adapts to every change in engine noise. No matter which one you choose, you’ll get your personal S1, a headset that adjusts to you. You’ve heard the buzz and it’s true: The Quiet Revolution is now for everyone. www.sennheiser-aviation.comhttp://www.sennheiser-aviation.com http://www.sennheiser-aviation.com