A free program for Android, by Miled Apps Studio.

Headphones are a great way to listen to music, but they can also be a great way to cause trouble. Sometimes, it is not possible to listen to music through your headphones, and you have to use your speakers instead. This can cause problems, especially when you are in a meeting, lecture, or other situation where you need to be able to listen to the speaker.

In this case, you can use Audio Switch – Disable Headphone. This is a great app that will allow you to use your phone speakers to listen to music. It is very easy to use. Just install the app, activate it, and you are ready to go.