Unlike regular headphones that feature a closed design, which physically blocks sound from escaping, the glasses use an open design that allows sound to be heard clearly while minimizing leakage. This open design is enhanced by a technology called reverse sound fields, which creates sound waves that counteract or cancel out external noise, essentially "shielding" the wearer from far-field sounds without needing to completely block the ears. This approach ensures that the wearer experiences clear, focused sound while reducing the impact of environmental noise.
The reverse sound fields work by emitting sound waves in opposite phases to the incoming far-field noise. This phase inversion leads to destructive interference, a phenomenon where two sound waves of the same frequency but opposite phases combine to cancel each other out. As a result, unwanted ambient noise is reduced, making the audio experience cleaner and more enjoyable.
In quieter environments, the wearer can also adjust the volume to an optimal level, further minimizing sound leakage.