You can use it in Winter, with no Touch. Auto scroll with your device's Accelerometer. Control scrolling velocity to be fast or slow. You can scroll automatically your web-page with Accelerometer. With compact design and button for more smooth operation. Can set up FAST or SLOWLY, Hlt down, scroll down tilt up, scroll stop tilt up, scroll up, tilt down, scroll down. Two modes Step by Step: If you tilt your device a little, it will scroll a little step by step.