05/18/2022
1. Prompt warning sound + vibration + sensitivity adjustment, charging + waterproof
2. Press and hold for 0.5 seconds to turn on, long press to turn off, 7-speed sensitivity adjustment, 3 indicators are on at the same time, 7-speed, 1-6 steps and so on.
3. Function key adjustment, you can turn off one of the functions, or work at the same time.
