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Why do passive isolation headphones work so well?

Updated: Apr 14, 2021

Direct Sound Headphones are Noise Cancelling by Passive Isolation. This means you don’t need batteries.


Specially Designed cushions act as a barrier between your ears and the outside world. While other headphones may measure their noise reduction capabilities at one specific frequency these offer true passive isolation over a wide frequency range. The Headphones include the latest in TruSound® delivering a full range of frequency response to make the listening experience full and enjoyable.






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