Features: Durable Shells, two-color light (red, green), fine workmanship make the whole product looks fashionable and beautiful. The input voltage of the product is 12V, which can be installed and used by all ships and vehicles, with a wide range of applications. The product is equipped with a dual USB 3.1A port, which can power mobile phones, tablets, etc. The product is equipped with a voltmeter, which can detect the conditions of use of the car to prevent accidents caused by the poor. Surge and undervoltage input protections; Overcurrent, overvoltage, undervoltage and short-circuit protection; Overload protections; Reverse connection protection; Internal chip heat protections. Specifications:Material: ABS Input Voltage: DC12V Output Voltage: 5V Output Source: 3.1A Voltage Indicator Color: Green, RedPackage Included:1x Motorcycle USB Charger Note:Please allow 1mm errors