It's better to turn on the speaker or headphone when you enter this website. You will see a lot of original points of different sizes circling around. When the original point rotates for a circle, it will touch the string and make a sound, and different sizes will produce different scales. Within 3 minutes, the biggest point rotates for a circle, and the second biggest one rotates for two circles, so on and so forth. In addition, there are different options, sound patterns (stereo, harmony, micro interval, etc.) and rotation speed for you to choose. Staring at those with different rotation speeds carefully, your insomnia symptoms will be greatly relieved.