diff --git a/include/f1x/openauto/autoapp/UI/MainWindow.hpp b/include/f1x/openauto/autoapp/UI/MainWindow.hpp
index 2c730df..a32b098 100644
--- a/include/f1x/openauto/autoapp/UI/MainWindow.hpp
+++ b/include/f1x/openauto/autoapp/UI/MainWindow.hpp
@@ -93,7 +93,6 @@ signals:
     void openWifiDialog();
     void openUpdateDialog();
     void showBrightnessSlider();
-    void showVolumeSlider();
     void showAlphaSlider();
     void showRearCam();
     void hideRearCam();
@@ -103,14 +102,11 @@ signals:
 
 private slots:
     void on_horizontalSliderBrightness_valueChanged(int value);
-    void on_horizontalSliderVolume_valueChanged(int value);
     void updateAlpha();
 
 private slots:
     void on_pushButtonBrightness_clicked();
     void on_pushButtonBrightness2_clicked();
-    void on_pushButtonVolume_clicked();
-    void on_pushButtonVolume2_clicked();
     void switchGuiToDay();
     void switchGuiToNight();
     void showTime();
@@ -119,10 +115,7 @@ private slots:
     void toggleExit();
     void createDebuglog();
     void setPairable();
-    void toggleMuteButton();
     void toggleGUI();
-    void setMute();
-    void setUnMute();
     void customButtonPressed1();
     void customButtonPressed2();
     void customButtonPressed3();
@@ -134,7 +127,6 @@ private slots:
     void updateBG();
 
     void on_horizontalSliderProgressPlayer_sliderMoved(int position);
-    void on_horizontalSliderVolumePlayer_sliderMoved(int position);
     void on_pushButtonList_clicked();
     void on_pushButtonPlayerStop_clicked();
     void on_pushButtonPlayerPause_clicked();
@@ -175,7 +167,6 @@ private:
     QFile *brightnessFile;
     QFile *brightnessFileAlt;
     char brightness_str[6];
-    char volume_str[6];
     int alpha_current_str;
     QString bversion;
     QString bdate;
@@ -243,7 +234,6 @@ private:
 
     bool bluetoothEnabled = false;
 
-    bool toggleMute = false;
     bool oldGUIStyle = false;
     bool UseBigClock = false;
     bool NoClock = false;