The Soundcore by Anker Liberty 4 NC Wireless Earbuds are marketed with “Ultimate Noise Cancelling” and a claimed 98.5 % noise‑reduction rating for travel use. They feature 11 mm custom‑tuned drivers equipped with HearID 2.0 technology, and Adaptive ANC 2.0 that adjusts to both the shape of your ears and the surrounding environment.
Battery life is listed as 10 hours on a single charge (up to 50 hours with the charging case) in normal mode, and 8 hours (40 hours with the case) when ANC is active. Call quality is supported by six built‑in microphones, AI‑enhanced processing, touch controls, and an IPX4 splash‑resistant rating.
*All details are based on the manufacturer’s specifications; no hands‑on testing has been performed.*
