The innovative ETINT technology is an electrophotochromic LCD lens that can switch from a clear tint to a dark tint depending on the brightness of the ambient light, either automatically or with the press of a button. In fine or bad weather, you will have good visibility.
The charging time, with a simple USB cable, is 1 hour for 16 hours of battery life.
To activate the automatic function, press the button for 3 seconds.