E2 features three audio modes that let you decide what you want to hear - and what you don't want to hear. These three modes are called Active Noise Cancellation (ANC), Transparency mode, and Normal (Off) mode.
The Active Noise Cancellation (ANC) mode in E2 reduces outside noise which allows you to fully immerse yourself in your own world.
Transparency mode works the opposite way and instead amplifies sounds in the background, enabling your spatial awareness. With this, you can stay alert to your surroundings without having to take out an earbud, or simply hear your own voice while on a phone call.
As soon as your phone recognizes that a phone call is incoming, E2 will automatically pause what you are listening and switch to transparency mode, then let you decide whether to answer the phone call or not.
The transparency mode will be on during the call regardless of use of ANC. When you end the phone call, E2 goes back to normal mode, ANC mode or Transparency mode depending on how you were using the earbuds before the call.
How to switch between the modes
The earbuds are in Normal (Off) mode by default, where background noise is neither reduced nor amplified. By holding the touch control for 2 seconds on the right earbud the modes cycle between Normal, Active Noise Cancellation, Transparency, and then back to Normal.
How does Active Noise Cancellation (ANC) work?
The mechanics behind Active Noise Cancellation is in its name. E2 uses Hybrid ANC technology, which is a combination of Feed Forward and Feedback ANC technology. Three microphones are located on the outside and inside of each earbud to effectively capture all kinds of noise, even the noise you hear through your ears while wearing the earbuds. The speakers then emit the recorded noise in real-time - but inverted - which cancels the noise nearly entirely.
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