- Function button is on the left side; First layer is 1~12 hour display; Second layer is minute display(Binary display: 10~50, 1~9).
- Time adjustment: press the function button will show the hour time; When hour LED indicator flash, press the function button 5s, can adjust hour time by function button; Press the function button for another 5s can adjust the minute time; After finishing adjustment, long press the button will return normal display mode.