The product shell is made of ABS and metal components, featuring a liquid crystal display screen. Functions include battery indicator, headlight control, boost function, boost gear, speed display, subtotal mileage/total mileage, running time, metric to English unit conversion, and fault prompt. Compatible voltage: 24V, 36V, 48V, 60V (adjustable from 24V to 60V). Fits handlebar diameter: 22.2mm. IP65 rated. Note: Product appearance, printed text, and color may vary slightly between batches, but this does not affect functionality. Type: 6PIN/5PIN Color: Black Material: Plastic Package Contents: 1 x Meter Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3 cm.