1.Suitable Situation: Widely used, suitable for 22.2mm or 0.9in handlebars, accessories for electric scooters and other vehicles External 3 way button is easy to operate. 2.Easily View: During riding, you can easily view the data displayed on the LCD meter, such as remaining battery, current speed, mileage and other parameters. 3.Useful Tool: Able to compatible with 36V and 48V voltage, intelligent electric quantity display, truly reflect battery quantity, real time record electric quantity consumption, clear with cycling mileage. 4.Characteristic: ABS housing, fine workmanship, good toughness and performance, provide better protections for the internal circuit. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.