4 ms·oscillating: https://youtu.be/2_5K4kmnsL4?t=75 https://youtu.be/2_5K4kmnsL4?t=75by bengali3 11y agooscillating: https://youtu.be/2_5K4kmnsL4?t=75 https://youtu.be/2_5K4kmnsL4?t=75