How to Use: Controller wiring instructions: connect the corresponding line interface according to the wiring diagram to realize the function. Specification: Item Type: 10 Inch Electric Scooter Controller Component Material: Aluminum Alloy + PCB Board + Plastic Color: As Pictures Shown Weight: Approx. 453g/16oz Product Size: Display Screen: Approx. 125x112mm/4.9x4.4in Cable Length: Approx. 100mm/3.9in Controller: Approx. 97x70x33mm/3.8x2.8x1.3in Total Communication Cable Length: Approx. 183cm/72in Voltage: 48V Current: 20A Applicable Handlebar: Diameter 22.2mm/0.9in Applicable Model: for KUGOO M4 and Other 10 Inch Electric Scooters Package List: 1 x Controller 1 x Display 1 x Communication Line 1 x Wiring Sleeve 1 x Wiring Manual Note: 1. Please allow 1‑3 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.