Anker's Soundcore Liberty 4 earbuds add spatial audio and heart rate tracking - The Verge

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.

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Anker's Soundcore Liberty 4 earbuds add spatial audio and heart rate tracking - The Verge

Soundcore by Anker Liberty 4, Noise Cancelling Earbuds, True Wireless Earbuds with ACAA 3.0, Dual Dynamic Drivers for Hi-Res Premium Sound, Spatial Audio with Dual Modes, All-New Heart Rate Sensor

Anker Liberty 4 review: ANC and Spatial Audio on a budget

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Anker Soundcore Liberty 4 review: exceptional value - Reviewed

Anker Soundcore Liberty 4 earbuds offer customizable audio + track heart rate continuously - Yanko Design

Soundcore Liberty 4 True Wireless Earbuds Review