What is the primary characteristic of a Power Window system?

The primary characteristic of a Power Window system is that it is operated by pressing a button. This design allows for ease and convenience in adjusting the windows of a vehicle without requiring significant physical effort. Unlike manual systems that involve hand-cranking or other forms of manual operation, power windows use an electric motor to raise and lower the windows, enhancing driver and passenger comfort and accessibility. This feature has become standard in modern vehicles, enabling quick adjustments with just the touch of a button.