With this app, you can do three things.

1. ON/OFF of call noise cancellation (power saving)
Control is possible in a total of 5 stages.
By setting the earphones to power saving mode when you are not making calls, you can reduce the power consumption of the earphones and extend the battery life.

2. Microphone test
Before making a call or web conference, you can check how your microphone sounds to the other party.
You can record up to 10 seconds, and pressing the test button again will erase the previous data.

3. Ambient ON/OFF
Control is possible in a total of 5 stages.
You can take in external sounds while wearing the earphones.