I turned the equalizer on. If you change the sticky note, you can change the equalizer curve. On days when there is not enough bass, days when you want to get excited with high notes, A day when I feel like singing with a high midrange, a day when I feel flat、、、 Enjoy it at your favorite frequency. Sticky notes are film-type, fluorescent-colored, translucent, thin sheets. It is suitable for marking small details. You can also write letters. Since it is translucent, it is a beautiful cloth that allows the letters and pictures below to be transparent. 〈Product details〉 Fusen Equalizer manual