Advanced Active Noise Cancelling Technology: Reduced noise, better sound. Hear every word, note, and tune with incredible clarity. Whether you are taking a long-haul flight or commuting to work, the ANC function can cancel out a wide range of low and mid frequency noises such as the aviation environment and car engines, so you can focus on what you want to hear. Superior Call Quality: Thanks to the combined built-in microphone with advanced audio signal processing technology. The E7 Active Noise Cancelling headphones deliver a clearer voice quality for all your phone conversations. The additional microphone feature isolates sound while talking on the phone. Conversation flows freely with easy, hands-free calling. Leave your phone where it is, just speaks with a short press. Premium Sound Quality: The 45mm drivers reproduce a full range of frequencies. The Bluetooth headphones will give you a deep, powerful, and immersive sound at any volume, make your overall listening experience