Test your earbuds or headphone sound quality and it's working condition. * Audio Earbud Test: - Sound test for earbuds and headphones. - Different set of tests available to check your earbuds and headphones working properly or not. - Check the quality of earbuds and headphones while listening to different frequency sounds and check if it is working properly. - Various Different Frequency tests: - High-Frequency Test - Low-Frequency Test - Stereo Frequency Test - Golden Frequency Test - Binaural Frequency Test * Left/Right Earbuds Test: - Left/Right speaker test you can test whether both earbuds working individually. - Check if wired headphones are connected or not, this can check the headphone jack quality and you can know if the headphone jack is properly working. - Detect the microphone of the headphone is properly working or not. - Also check whether the volume buttons and call pick-up buttons are working or not. * Audio Equalizer: - Five bands Equalizer or Virtualize - Bass Boost effect - Volume Boost effect - 3D sound effect - Use this equalizer to improve the sound quality. - Control the Equalizer, Bass Booster, Sound Booster and Virtualizer of music. - Adjust sound effect levels to listen to sound in its best quality. How to use the Equalizer feature: - Turn on any music on your phone. - Open this app's equalizer. - Change the setting according to your preferences - Listen to the changed effects of your music.