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.