Product model: M5 ultra-thin design, LCD instrument with metal frame Product size: 93.4 x 56.4 x 9 mm Adaptive voltage: 24V/36V/48V/60V (24V-60V adjustable) Product shell: ABS and metal parts Communication: UART Applicable handlebar size: 22.2 mm / 25.4 mm / 28.6 mm / 31.8 mm Waterproof grade: IP65 Product features: Combination of design and quality. Aluminum alloy frosted shell, tempered glass panel, special lamination process, minimum thickness reaches 6 mm Battery indicator: Yes Boost function: Yes Boost gear: Yes Speed display: Yes Subtotal mileage / total mileage, running time, metric conversion, fault prompt Note: Due to different batches, there may be differences in product appearance, color, and text, which do not affect functionality Specification: 5PIN Color: Black Material: ABS Package contents: 1 x LCD Display Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement error allowed is +/- 1-3 cm.