0: No protection

1: Prevent the intrusion of large solids

2: Prevent the intrusion of medium-sized solids

3: Prevent small solids from entering and intruding

4: Prevent solid objects larger than 1mm from entering

5: Prevent the accumulation of harmful dust

6: Completely prevent dust from entering

The second X means: Waterproof level

0: No protection

1: There is no effect when water drops drip into the shell

2: When the shell is tilted to 15 degrees, the water droplets will not affect the shell

3: Water or rain has no effect from the 60 degree corner to the shell

4: The liquid is splashed into the shell from any direction without any harm

5: Rinse with water without any harm

6: Can be used in the cabin environment

7: Can withstand water immersion in a short time (1m)

8: Long time immersion in water under certain pressure