SonicUsa app analytics for December 7

This application can control the sound through BLE and has the following functions: 1. Music: you can control the sound to play music from mobile phone, SD card music, USB flash music 2. Radio: can control the search and audio selection 3. Sound effect: you can adjust the sound volume, treble and bass. You can also select the corresponding default mode, such as jazz, country, rock, etc., and you can customize your favorite mode.