Features1Digital Voltage Display: Real time digital voltage display is intuitive and convenient, and can accurately judge the remaining power, mileage. 2Battery Level Display: The display accurately judges the battery level based on the voltage and indicates the condition of the vehicle. Let you travel with peace of mind. 3Wire Connection: The green wire is Hall signal wire, red wire is positive 5V, black wire is negative wire, blue wire is connected to outgoing wire of electric switch, and yellow wire is connected to the positive terminal of incoming power supply of the controller switch (power switch , control the vehicle power). 412V to 99V Universal: Regardless of various types of electric vehicles (12V to 99V universal), they can be automatically recognized and displayed in real time. 5Good Features: Handlebar throttle twist grip is regardless of lithium batteries, water batteries, dry batteries. General accessories for electric vehicles.SpecificationItem Type: HandlebarThrottleTwistGripProduct Material: PlasticColor: As Pictures ShownWeight: Approx. 346g / 12.2ozSpecifications: General Accessories for Electric VehiclesFeatures:1. By turning the real time voltage value of the handle, you can accurately determine how much power is left.Package List1 xThrottle Grip1 x Grip2 x Key