Simple Duster is a free Android application developed by Süleyman Ulusoy, falling under the category of Utilities & Tools. This program uses sine wave sounds of predefined frequencies to remove dust from speakers. By playing these sound waves, the speaker vibrates and shakes off any dust stuck inside.

To use Simple Duster efficiently, place your phone with the speaker facing down, turn the volume to maximum, and disconnect any connected headsets. Once these steps are completed, click the start button to clean your speakers. The application is easy to use and provides a unique way to clean your speakers without damaging them.

Overall, Simple Duster is an excellent application for people who want to keep their speakers clean without any physical interaction. The application can be accessed for free and is a great addition to your phone's utilities.