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The latest version of Soundcore Liberty earbuds has a $150 price to go with active noise cancellation, heart rate tracking, spatial audio, and a wireless charging case that can keep them going for up to 28 hours.
Third-party gyroscopic head tracking is not “Spatial Audio”: the Anker soundcore Liberty 4 – kbps
Anker's new Soundcore Liberty 4 earbuds with ANC and Spatial Audio on sale for $130
Anker's Soundcore Liberty 4 earbuds add spatial audio and heart rate tracking - The Verge
Review: Anker Liberty 4 earbuds take on AirPods with ANC, Spatial Audio, and heart rate monitoring
Anker Soundcore Liberty 4 earbuds offer customizable audio + track heart rate continuously - Yanko Design
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First look - Soundcore Liberty 4, earbuds with heart rate tracking
Anker Debuts New Soundcore Liberty 4 Earbuds With Heart-Rate Monitor - CNET
Anker's Soundcore Liberty 4 earbuds can monitor your heart rate