Item Features:Material:1. wheel: standard international A356 aluminum heat treatment. 2. magnetic steel: standard 38H 3. iron core: DW350 lamination 4. Hall: Honeywell can resist high temperature:150 Packing List:1* 15 inch hub motor1* controller1* S886 LCD display ( Which include a thumb throttle)2* brake lever1* Disc brakeS886 Button introduction:Machine off/on button: short press switch the indication interface/setting interface; long press display on/off.Adjust button: short press will switch gears, date add or delete in setting interface.Machine off/on button + Adjust button: long press will in or exit setting.Under setting interface:Short press Machine off/on button: Switch setting inforface.On press Machine off/on button, switch Adjust button: Add or subtract setting date.P1 adjusts the screen brightness:P2 speed/hours unitP3 voltage regulationP4 sleep timeP5 shift positionP6 wheel sizeP7 tuning pole pairsP8 set speed limitP9 adjusts the gear position when starting, 0 is soft start; 1 is hard startP10 pure ankle or pure electric, or 1:1 boostP11 setting The sensitivity of the boost, 1 is relatively sensitive, 24 is relatively slowP12 Set the power of the ankle, 1 is weak, 5 is strongP13 Set the number of magnetic poles for magnetic assistanceP14 Set flow limitP15 set low voltage protectionP16 setting mileage digital displayFor this 15 inch hub motor: P0=35, P1=15, P2=10, P3=1, P4=0