Features1Digital Voltage Display: The electric bike twist throttle can display real time digital voltage, which is intuitive and convenient, and can accurately judge the remaining power and driving mileage. 2Practical: The display accurately judges the battery level and indicates the vehicle condition according to the voltage. Digital voltage display, visually and accurately judge the remaining cities and mileage, and indicate vehicle faults according to the voltage. 3Automatically Recognized: This electric bike handlebar throttle can be automatically recognized and displayed in real time regardless of various models of electric vehicles, 12V to 99V universal. 4Introduction: The green line is the handle hall signal line, the red line is the handle positive 5v, the black line is the negative pole, the blue line is connected to the controller switch lock outgoing line, and the yellow line is connected to the controller switch incoming power supply positive pole, power switch, control vehicle power supply. 5 ABS and Note: This electric bike throttle grip is made of ABS materials, durable, and can be used for a long time. Please be sure to check the function line wiring of the controller, and do not simply connect the color wire with the controller. Once connected incorrectly, the controller or the handle will be damaged.SpecificationItem Type: Bike Speed ControllerMaterial: ABSGross Weight: 171g/6.0ozInterface: SM interfacePackage List1 xBike Speed Controller2 x Keys1 x Manual