Two built-in microphones with uplink noise cancellation boost clarity by recognizing your voice and filtering out ambient noises to ensure you sound crystal-clear even in noisy spaces. Stereo calls further enhance call quality by allowing you to hear the other person's voice in both earbuds.¦Graphene-coated drivers oscillate precisely, enabling Liberty Air to reproduce highly-accurate sound. Every detail of the music, from the deepest bass, to the brightest mids, and lush treble is delivered with extraordinary clarity and no distortion.¦The latest Bluetooth 5.0 technology and a FPC antenna create a rock-solid connection for skip-free music. One-Step Pairing ensures that after the initial setup is complete, Liberty Air will automatically connect to your device the moment it's removed from the charging case.¦A seamlessly concealed sensor in both the earbuds allows you to effortlessly answer calls or adjust music without reaching for your phone.