Excuse me, how to use the landwind X7 automatic wiper?

The wiper of Landwind X7 has the function of automatically sensing and identifying rain, and the switch of the wiper is adjusted downwards to the first position. The rearview mirror at the top of the windshield is located outside the windshield. When it rains, an induction lens will automatically turn on and off the wiper, and automatically adjust the speed of the wiper according to the rainfall to keep the line of sight clear.