IMPORTANT! Reading before purchasingPlease measure the distance between the charging points on the back of the watch to select the correct one. If you need a larger or smaller spacing size please contact Xininyia customer service. IMPORTANT! Reading before purchasingPackage contains 2 cables black and white called Model A and model B which are of different polarities. At least one will fit you smartwatch(PREREQUISITE: Spacing is correctly selected). So if you want to get it right the first time This is a good choice. Efficient Fast ChargingAdvanced fast charging technology optimized circuit design ensures stable output of current and voltage. Strong Magnetic Design Built-in pure copper probe with solid magnetic power supply stronger adsorption watch charging than other chargers. Short-Circuit ProtectionMultiple protection mechanisms such as short-circuit protection over-voltage and over-current protection effectively prevent the battery from overheating and damage. Stable and DurableMade of ABS material and flexible PVC. The charger cable has been tested for bending over 5001+ times. Portable and ECO-FRIENDLYThe charging cable is designed to be lightweight and portable so it can be put into your travel bag and carried around. Adopting high efficiency conversion circuit and low power standby mode reduces energy consumption minimizing energy waste and carbon emission.