Why you can trust What Hi-Fi? Our expert team reviews products in dedicated test rooms, to help you make the best choice for your budget. Find out more about how we test. Originally released in 2010, ...
U.S. Patent #10,441,470; apex® (Air Pressure Exchange) is a Pneumatically Interactive Vent that Releases Air Pressure in a Sealed Ear Canal, Which Alleviates Listener Fatigue and Opens the Soundstage; ...
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