Headphone Connect is a free Android app developed by Kali Developers in the Utilities & Tools category. It is an application that runs a service on the phone which resumes audio songs on connecting headphones. This app is useful because when we disconnect headphones, songs pause, but on connecting headphones again, songs do not resume unless the particular music player provides the option to resume.

With Headphone Connect, users need not keep the application page open as it is a service that runs in the background. The service can be stopped or started as per the user's requirement, which can be controlled by the application home page. It should be noted that the app will resume audio player according to the priority set into the Android device.

Overall, Headphone Connect is a useful application for those who frequently use headphones to listen to music on their Android device. It provides a seamless experience by automatically resuming audio songs on headphone connection.