@ Soundcore Liberty 4 true wireless earbuds and their retail packaging by Anker.
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Core Features & Specifications
• Acoustic Design: Powered by the ACAA 3.0 (Coaxial Acoustic System), incorporating dual dynamic drivers (9.2mm + 6mm) to deliver high-fidelity premium sound with a wide frequency range.
• Built-in Health Tracking: Features an integrated in-ear optical heart rate sensor and stress detection metrics that sync directly with the soundcore companion app.
• Active Noise Cancellation: Utilizes HearID ANC, which automatically tests your ear canal structure to calibrate a personalized noise-canceling profile.
• Audio Codecs: Supports Hi-Res Wireless Audio and Sony's LDAC codec, allowing transmission of up to three times more data than standard Bluetooth protocols.
• Battery Life: Provides up to 9 hours of playback