Package Included: 2 x Handlebars (1pc right handle, 1pc left handle grip) 1 x 2m Line Description: The digital data display, not that common analog signal display, which can accurate judge rest battery level and rest distance can indicate vehicle error according to voltage.Fit for many types of battery such as lead acid battery, lithium battery, water battery and dry battery.This throttle indicates battery level by digital data display, you can judge your rest battery level according to your battery voltage, can also check your battery condition after you charged it full. It is a universal throttle for electric bike, scooter , tricycle, and other electric vehicle. Specifications:Material: Aluminium Alloy + Rubber Color: Golden, Silver, Red, Blue (optional) Wire Length: approx. 2m / 78.7" Note: 1. Please notice that if your electric vehicle's controller doesn't support speed regulation, then this speed control switch has no effect. 2. When installing the non professionals, please pay attention to the line order, can not be connected to the wrong line, otherwise it is very easy to cause the burning of Holzer and LED tube. 3. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 4. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail. About this item Universal voltage, fit for 12-84V electric bike or scooters, can identify voltage automatically, timely indicating By turning the real-time voltage value can accurately determine the amount of the remaining amount of electricity To avoid traveling on the way without electricity and accurate judgment of the lithium battery is damaged By turning the real-time voltage value can accurately determine the judge the quality of lithium battery Automatic to identification electric vehicles' voltage under 100V, universal used and real-time display Universal voltage, fit for 12-84V electric bike or scooters, can identify voltage automatically, timely indicating By turning the real-time voltage value can accurately determine the amount of the remaining amount of electricity To avoid traveling on the way without electricity and accurate judgment of the lithium battery is damaged By turning the real-time voltage value can accurately determine the judge the quality of lithium battery Automatic to identification electric vehicles' voltage under 100V, universal used and real-time display