Good music! Soft music should be used in the first stage of cooking headphones, such as the ferry in Cai Qin. Turn up the volume to about 30%. Play for four or five hours every day. In three to five days, we will enter the second stage. In the second stage, we will take some new eras, such as Bandari. Play it for five or six hours every day, or intermittently, and control the volume at about 40%. After a week, play your favorite music. At this time, it's time to set up headphones. Play only your favorite music. If you like hippo, put hippo. If you like fashion, put it on. You can increase the volume appropriately at this stage. This stage is a long process ... usually after two weeks, you can hear the difference between the boiled headphones and the new headphones. However, there is little difference in sound quality between the earphone pot and the non-pot at the general price. It may have a longer life ... pay special attention, it is best not to cook headphones with white noise.