Soundcore By Anker Liberty 4, Noise Cancelling Earbuds, True Wireless Earbuds With Acaa 3.0, Dual Dynamic Drivers For Hi-Res Premium Sound, Spatial

Crisp, clear sound via ACAA ? 3.0 Coaxial Acoustic System 360° immersive spatial audio with music and movie modes CloudComfort ? ear tips for long-lasting comfort All-new heart rate sensor with soundcore app HearID personalized active noise cancelling 9/28 hours of playtime for all-day listening Note: For peak performance, please use the soundcore app and update to the latest firmware.