diff --git a/Lib.Audio/Interfaces/IMasterControllable.cs b/Lib.Audio/Interfaces/IMasterControllable.cs
new file mode 100644
index 0000000..54c2af1
--- /dev/null
+++ b/Lib.Audio/Interfaces/IMasterControllable.cs
@@ -0,0 +1,11 @@
+// Author: Simon Gockner
+// Created: 2021-04-10
+// Copyright(c) 2021 SimonG. All Rights Reserved.
+
+namespace Lib.Audio.Interfaces
+{
+    public interface IMasterControllable : IControllable
+    {
+        
+    }
+}
\ No newline at end of file
diff --git a/Lib.Audio/MasterControllable.cs b/Lib.Audio/MasterControllable.cs
new file mode 100644
index 0000000..b1ea1d1
--- /dev/null
+++ b/Lib.Audio/MasterControllable.cs
@@ -0,0 +1,45 @@
+// Author: Simon Gockner
+// Created: 2021-04-10
+// Copyright(c) 2021 SimonG. All Rights Reserved.
+
+using System.Runtime.InteropServices;
+using Lib.Audio.Interfaces;
+using NAudio.CoreAudioApi;
+
+namespace Lib.Audio
+{
+    public class MasterControllable : IMasterControllable
+    {
+        private readonly AudioEndpointVolume _audioEndpointVolume;
+        private readonly string _name;
+
+        public MasterControllable(AudioEndpointVolume audioEndpointVolume, string name)
+        {
+            _audioEndpointVolume = audioEndpointVolume;
+            _name = name;
+        }
+        
+        public void SetVolume(float volume)
+        {
+            try
+            {
+                _audioEndpointVolume.MasterVolumeLevelScalar = volume;
+            }
+            catch (InvalidComObjectException)
+            {
+                // MasterControllable? masterControllable = _controllableCollector.Controllables.OfType<MasterControllable>().FirstOrDefault(c => c.Equals(this));
+                // if (masterControllable != null)
+                //     masterControllable._audioEndpointVolume.MasterVolumeLevelScalar = volume;
+            }
+            catch (COMException)
+            {
+                
+            }
+        }
+
+        public void Mute() => _audioEndpointVolume.Mute = true;
+        public void UnMute() => _audioEndpointVolume.Mute = false;
+
+        public override string ToString() => _name;
+    }
+}
\ No newline at end of file
diff --git a/Mystify/Installers/AudioInstaller.cs b/Mystify/Installers/AudioInstaller.cs
index 2e9d4f5..6ef9b50 100644
--- a/Mystify/Installers/AudioInstaller.cs
+++ b/Mystify/Installers/AudioInstaller.cs
@@ -23,6 +23,7 @@ namespace Mystify.Installers
             container.Register<IDevice, Device>();
             container.Register<IChannel, Channel>();
             container.Register<IControllable, Controllable>();
+            container.Register<IMasterControllable, MasterControllable>();
             container.Register<IControllableCollector, ControllableCollector>();
 
             //controls