This is a microphone test app that allows you to measure the quality of your microphone and compare it with others. 

You can also use it to measure the audio volume and the sound frequency. It can be used to test the microphone of a new device before you buy it.

It has a screen that shows the audio level and a progress bar that shows the recording time. You can also configure the duration according to your preferences.

You can save the recordings and use them to compare the quality of your different devices or to test your headset.