Features: 1. Universal voltage, fit for 12-84V electric or scooters, can identify voltage automatically, timely indicating. (12V, 24V, 36V, 48V, 60V, 72V electric vehicles can be used directly, part of the 84V electric vehicles can also be used.) 2. By turning the real-time voltage value can accurately determine the amount of the remaining amount of electricity. 3. To avoid traveling on the way without electricity and accurate judgment of the lithium battery is damaged. 4. By turning the real-time voltage value can accurately determine the quality of lithium battery. 5. Automatic to identification electric vehicles' voltage under 100V, universal used and real-time display. 6. Universal throttle for electric bike, scooter , tricycle, and other electric vehicle. Specifications: Material: Aluminium Alloy + Rubber Color: Golden, Silver, Red, Blue (optional) Package Weight: approx. 320g Type: Throttle with digital display and lock Wire Length: approx. 2m / 78.7" Install Hole Diameter: approx. 2.3cm / 0.9" Working Voltage: Throttle DC1-4.2V, battery level indicator, 12-84v automatically identitify Compatible With: Suitable for 12V-99V Electric Fitment: Fit for 22.2mm diameter handle Five Wires: Yellow is for power positive Blue is for for controller power positive or electric switch, or key lock Three throttle wires: Red is for throttle positive + 5v Green is for throttle wire Black is for throttle negative Package Included: 2 x Handlebars (1pc right handle, 1pc left handle grip) 1 x 2m Line 2 x Keys