Headphone · Anker

Soundcore Liberty 4

Anker Soundcore Liberty 4 Overview The Anker Soundcore Liberty 4 represents a significant leap forward in affordable high resolution true wireless earbud technology. Combining dual dynamic drivers in a coaxial acoustic architecture with built in heart rate tracking and spatial audio processing, these stem style earbuds deliver features usually reserved for flagship devices. Because of their rich feature set, compact form factor, and complex internal stack—which includes tiny lithium ion button cells, dual drivers, built in optical health sensors, and multi microphone arrays—maintaining and re…