Compatibility: This charger dock compatible with Fitbit Versa 2 smart watch, with 3.3 feet USB charging cable.Not compatible with Fitbit Versa/Versa Lite/Versa Special EditionPremium & Speedy: The Versa 2 charging cable is made of high quality wire, provides a stable performance and a fast charging, about 2.5 hours a full charge.Not compatible with Fitbit Versa/Versa Lite/Versa Special EditionSafe Protection: The Versa 2 charger built in smart chip, protect your smart watch from over-current, over-voltage, over-circuit protection, offers a safe environment for charging.Convenient and Easy to Use: To get a charging just plug it into USB port on your PC, laptop, notebook, wall charger. Geting a better experience, we suggest you to use the recommended adapter (5V 1A).