You can use it safely and reliably because it has short circuit, over-voltage, overload and overpower protection.The charger is characterized by stable performance and high reliability due to its low working temperature, good anti-interference performance, fast charging speed, high efficiency and long service life.It is made of high-quality plastic and metal material, which is safe and reliable to use.The cable length of the charging cable is 100cm. The length of the charging dock is 102mm, the width is 91mm and the height is 51mm.The charging cable is compatible for Amazfit GTS 3/GTR 3/GTR 3 Pro. And the charging dock is compatible for Amazfit GTR 3/GTS 3.Item Name: Watch ChargerMaterial: Plastic, MetalStyle: A: Charging Cable, B/C: Charging Dock (Optional)Compatible Models:Charging Cable: for Amazfit GTS 3/GTR 3/GTR 3 ProCharging Dock: for Amazfit GTR 3/GTS 3Features: Fast Charging, Anti-interference, Safety ProtectionSize Details: Charging Cable Length: 100cm/39.37" (Approx.)Charging Dock Size: 10.2cm x 9.1cm x 5.1cm/4.02" x 3.58" x 2.01" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Watch Charger (Watch Not Included)