Headphone battery level widget

The application creates a stylish widget on the desktop of your smartphone in the form of a battery with an indication of the charge level of wireless headphones, headsets or other Bluetooth devices. The connected device will transmit data on the charge of the battery (battery), if this functionality is provided by the manufacturer.
The main functions of the application:
1. Display the battery level of the connected Bluetooth device.
2. Show the name, Mac address of the device.
3. Show signal strength level. Indirectly, according to these data, you can determine whether the headphones are near you or not.
4. Creating a widget on the desktop with headphone battery level.
5. View and adjust the audio volume level.