Stereo Test is a free Android application developed by Blue Orb. As the name suggests, it is a utility designed to test the stereo capabilities of headphones.

The application consists of a series of audio tests that can help users determine if their headphones are producing sounds in both channels equally. The user interface is simple and easy to navigate, with a clean and minimalist design.

Overall, Stereo Test is a useful tool for anyone who wants to ensure that their headphones are working correctly. It is a lightweight and straightforward application that can be downloaded for free from the Google Play Store.