Completely free and without advertising.
This application will help you to test the performance of your headphones or speakers.
Press the L button to test the left channel and R to test the right one.
You can use it while listening music to check if each stereo channel is properly connected and placed.
If you need more features to evaluate the audio quality you can try the EarphonesTester App that is also completely free and without advertising.
Added landscape mode.
9Apps 4.9
