Adapted voltage: 24V/36V/48V/60V(24V-60V adjustable) Applicable handlebar size: 22.2MM Product features: Bold button backlight design. Even at night, button functions can be clearly distinguished. Power indicator; Headlight control; Boost function; Boost gear and speed display; Subtotal mileage/total mileage, running time, metric to English conversion, fault prompt Different batches may cause differences in product appearance, text, and color, which will not affect the use Color: Black Material: ABS Package Contents: 1 x LCD Display 1 x Sine Wave Controller(Random colors and appearance, don't accept the specified color.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.