An application that offers you many options for cleaning the sound of the phone through the 165 Hz sound feature of water and dust It can be said that this feature helps the external headphones for phones a lot, especially the weak sound. We will not deny that after we hear a weak phone sound, we get upset, and we are always looking for a quick solution without opening our device I would like to tell you that this feature may solve the sound problem for everyone, and simply after turning it on once or twice with a speaker facing down, you will notice a big difference between before and after.