USB cable is constructed with high quality materials and has a lifetime . Made with hight quality materials,Over-Voltage Protection,Over-Current Protection,Over-Charge Protection,Short-Circuit Protection to ensure safely charge. Firm and very convenient to clean electric shavers and razors. Parameters Shaver Charger Input: AC 100-240V Output: 4.3V 70mA Brush and Charging Wires Color: Black Brush size:2.17*0.59*0.17 in Before purchase, please compare the interface of charging cable and shaver to avoid buying the wrong model.