In addition to using the USB charging cable, your charging clip can charge your buds without having to be connected to a power source. Your charging clip has an internal battery and circuitry that extends your play time by 4 hours. Simply attach it to the back of the controller and it automatically starts charging.
Every time you attach the charging clip it will reset your buds by turning them off. You may turn your buds back ON and continue to listen to your music while the charging clip is attached and transferring power.
NOTE: Although the Freedom 2 buds are sweat-proof, the charging clip is not. Exposing to moisture or sweat will void your warranty.