So all the wheels are without gas to arrive to you. When you get it, please inflate the wheel firstly. The instrument has instructions, please ask us after receiving the goods if you need it. Power: 350W, 500W, 600W, 800W, 1000W. Applicable models: 10-inch scooter. 1 10 inch Hub motor. 2 Set Tire(include the inner tube). 1 Pair Brake lever. 2 Disc brake set. How to connect the controller lines? Red wire (D+): power supply positive input. Black wire (GND): negative pole of power supply. Blue line (DS): Controller electric door lock. Green wire (RX): communication reception. White line (TX): communication transmission. Speed display, battery indicator, fault indicator, headlight indicator, cruise indicator, gear indicator, total mileage, single mileage. Real-time voltage, running current, running time, start mode. Parameter setting and definition. P01: Backlight brightness, level 1 is the darkest, level 3 is the brightest. P02: Mileage unit, 0: KM; 1: MILE. P03: Voltage level: 24V, 36V, 48V, default 36V. P04: Sleep time: 0, no sleep; other numbers are sleep time, range: 1-60; unit minute. P05: Power-assisted drive gear setting. P06: Wheel diameter: unit, inch; precision: 0.1. P07: Number of speed magnets: range: 1-100. P08: Speed limit, the maximum operating speed of the motor. P09: Zero start, non-zero start setting, 0: zero start; 1: non-zero start. P10: Drive mode setting 0 Power-assisted drive 1 Electric drive 2 Power-assisted drive Electric drive coexistence. P11: Assist sensitivity setting 1-24. P12: Starting torque: range: 0-5, 0 is the weakest, 5 is the strongest. P13: Magnet type setting of booster plate 5 8 12. P14: Controller current limit value setting Default 12A range: 1-20A; (requires controller software support). P15: Motor drive signal percentage setting (to achieve the speed limit function of PO8) full speed is set to 100. P16: Instrument real-time cruise function 1 With this function 0 Without this function. P17: Headlight synchronization function 1 Headlights and backlight do not light up after turning on 0 Headlights and backlight light up after turning on. P18: Power-on password selection function 1 With this function 0 Without this function. P99: One-key recovery function in the P99 parameter setting interface, press and hold the MODE key for 5-6 seconds, and all parameters will be restored to the first. Initial settings for the second boot. ODO: ODO clear in the ODO parameter setting interface, first short press the MODE button and then long press for 5M-6 seconds until the number is zero, release. The specific status of the fault content is as follows. ERRO 1: Motor failure. ERRO 2: Handlebar malfunction. ERRO 3: Controller failure. ERRO 4: Power-off brake lever. ERRO 5: Undervoltage protection. ERRO 6: Communication failure, the meter cannot receive the output of the controller. ERRO 7: Communication failure, the controller cannot receive the output of the instrument.