Precise adaptation: Designed for Samsung Galaxy Fit3 R390 smart bracelet, the plug interface fits perfectly with the bracelet to ensure stable charging and no need to worry about compatibility issues.High-quality materials: made of high-quality materials, the mini charger is durable, the outer skin of the 100CM charging cable is flexible and wear-resistant, and the internal copper core has strong electrical conductivity to ensure long-term use.Efficient and fast charging: The 65DA charger has efficient and fast charging technology, which can quickly replenish the power of the bracelet, reduce waiting time, and allow you to keep the bracelet fully charged at any time.Easy to use: the length of 100CM is convenient for daily use, and can be flexibly placed on the desktop, bedside, etc.; The mini charger is compact and lightweight, easy to carry, and can be easily charged when traveling.