Soundcore by Anker Liberty 4 / Liberty 4 NC / Liberty 4 Pro 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

Reduce Noise By Up to 98.5%¹ Liberty 4 NC noise cancelling earbuds have a high sensitivity in-ear sound sensor, an oversized driver, and an innovative noise isolation chamber that cancels up to 98.5%1 of noise for peaceful travel.Maximum Quiet, Anytime, Anywhere Adaptive ANC 2.0 analyzes external and internal noises via in-ear and external sound sensors, with an additional 512-order FIR filter to effectively remove unwanted noises in real-time, for more precise and instantaneous noise cancelling.Crisp Sound with 3× More² Detail 11mm custom-tuned drivers deliver crisp, detailed sound that feels like you're switching on HD for your ears. Experience Hi-Res wireless audio and LDAC technology that transfers 3× more2 data than regular Bluetooth—bringing wireless music to life.