diff --git a/Tomighty.Core/IMutableUserPreferences.cs b/Tomighty.Core/IMutableUserPreferences.cs
index cc97d4c..bfba7de 100644
--- a/Tomighty.Core/IMutableUserPreferences.cs
+++ b/Tomighty.Core/IMutableUserPreferences.cs
@@ -11,6 +11,7 @@ public interface IMutableUserPreferences : IUserPreferences
     {
         void SetIntervalDuration(IntervalType intervalType, Duration duration);
         new bool ShowToastNotifications { get; set; }
+        new bool PlaySoundNotifications { get; set; }
         new int MaxPomodoroCount { get; set; }
     }
 }
diff --git a/Tomighty.Core/IUserPreferences.cs b/Tomighty.Core/IUserPreferences.cs
index dd88191..0c1fca1 100644
--- a/Tomighty.Core/IUserPreferences.cs
+++ b/Tomighty.Core/IUserPreferences.cs
@@ -14,6 +14,7 @@ public interface IUserPreferences
         Duration GetIntervalDuration(IntervalType intervalType);
         int MaxPomodoroCount { get; }
         bool ShowToastNotifications { get; }
+        bool PlaySoundNotifications { get; }
 
         void Update(Action<IMutableUserPreferences> action);
     }
diff --git a/Tomighty.Windows/Notifications/SoundNotificationPlayer.cs b/Tomighty.Windows/Notifications/SoundNotificationPlayer.cs
new file mode 100644
index 0000000..4b70fd0
--- /dev/null
+++ b/Tomighty.Windows/Notifications/SoundNotificationPlayer.cs
@@ -0,0 +1,25 @@
+using System.Media;
+using Tomighty.Events;
+
+namespace Tomighty.Windows.Notifications
+{
+    public class SoundNotificationPlayer
+    {
+        private readonly IUserPreferences userPreferences;
+        private readonly SoundPlayer intervalCompletedNotification = new SoundPlayer(Properties.Resources.audio_deskbell);
+
+        public SoundNotificationPlayer(IUserPreferences userPreferences, IEventHub eventHub)
+        {
+            this.userPreferences = userPreferences;
+            eventHub.Subscribe<TimerStopped>(OnTimerStopped);
+        }
+
+        private void OnTimerStopped(TimerStopped @event)
+        {
+            if (@event.IsIntervalCompleted && userPreferences.PlaySoundNotifications)
+            {
+                intervalCompletedNotification.Play();
+            }
+        }
+    }
+}
diff --git a/Tomighty.Windows/Preferences/UserPreferences.cs b/Tomighty.Windows/Preferences/UserPreferences.cs
index e69fabd..e688420 100644
--- a/Tomighty.Windows/Preferences/UserPreferences.cs
+++ b/Tomighty.Windows/Preferences/UserPreferences.cs
@@ -40,7 +40,8 @@ private static Values GetDefaultValues()
                 ShortBreakDuration = Duration.InMinutes(5).Seconds,
                 LongBreakDuration = Duration.InMinutes(15).Seconds,
                 MaxPomodoroCount = 4,
-                ShowToastNotifications = true
+                ShowToastNotifications = true,
+                PlaySoundNotifications = true
             };
         }
 
@@ -80,6 +81,12 @@ public bool ShowToastNotifications
             set { values.ShowToastNotifications = value; }
         }
 
+        public bool PlaySoundNotifications
+        {
+            get { return values.PlaySoundNotifications; }
+            set { values.PlaySoundNotifications = value; }
+        }
+
         public void Update(Action<IMutableUserPreferences> action)
         {
             action(this);
@@ -94,6 +101,7 @@ private class Values
             public int LongBreakDuration { get; set; }
             public int MaxPomodoroCount { get; set; }
             public bool ShowToastNotifications { get; set; }
+            public bool PlaySoundNotifications { get; set; }
         }
     }
 }
diff --git a/Tomighty.Windows/Preferences/UserPreferencesForm.Designer.cs b/Tomighty.Windows/Preferences/UserPreferencesForm.Designer.cs
index 1667159..96d0bac 100644
--- a/Tomighty.Windows/Preferences/UserPreferencesForm.Designer.cs
+++ b/Tomighty.Windows/Preferences/UserPreferencesForm.Designer.cs
@@ -55,6 +55,7 @@ private void InitializeComponent()
             this.tabPage2 = new System.Windows.Forms.TabPage();
             this.label8 = new System.Windows.Forms.Label();
             this.toastNotification = new System.Windows.Forms.CheckBox();
+            this.soundNotifications = new System.Windows.Forms.CheckBox();
             this.groupBox1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.longBreakDurationTextBox)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.shortBreakDurationTextBox)).BeginInit();
@@ -304,6 +305,7 @@ private void InitializeComponent()
             // 
             // tabPage2
             // 
+            this.tabPage2.Controls.Add(this.soundNotifications);
             this.tabPage2.Controls.Add(this.toastNotification);
             this.tabPage2.Controls.Add(this.label8);
             this.tabPage2.Location = new System.Drawing.Point(4, 22);
@@ -333,6 +335,16 @@ private void InitializeComponent()
             this.toastNotification.Text = "Show a toast notification";
             this.toastNotification.UseVisualStyleBackColor = true;
             // 
+            // soundNotifications
+            // 
+            this.soundNotifications.AutoSize = true;
+            this.soundNotifications.Location = new System.Drawing.Point(16, 59);
+            this.soundNotifications.Name = "soundNotifications";
+            this.soundNotifications.Size = new System.Drawing.Size(87, 17);
+            this.soundNotifications.TabIndex = 2;
+            this.soundNotifications.Text = "Play a sound";
+            this.soundNotifications.UseVisualStyleBackColor = true;
+            // 
             // UserPreferencesForm
             // 
             this.AcceptButton = this.okButton;
@@ -387,5 +399,6 @@ private void InitializeComponent()
         private System.Windows.Forms.TabPage tabPage2;
         private System.Windows.Forms.Label label8;
         private System.Windows.Forms.CheckBox toastNotification;
+        private System.Windows.Forms.CheckBox soundNotifications;
     }
 }
\ No newline at end of file
diff --git a/Tomighty.Windows/Preferences/UserPreferencesForm.cs b/Tomighty.Windows/Preferences/UserPreferencesForm.cs
index 1435333..18308c9 100644
--- a/Tomighty.Windows/Preferences/UserPreferencesForm.cs
+++ b/Tomighty.Windows/Preferences/UserPreferencesForm.cs
@@ -24,6 +24,7 @@ public UserPreferencesForm(IUserPreferences userPreferences)
             longBreakDurationTextBox.Value = userPreferences.GetIntervalDuration(IntervalType.LongBreak).Minutes;
             maxPomodoroCountTextBox.Value = userPreferences.MaxPomodoroCount;
             toastNotification.Checked = userPreferences.ShowToastNotifications;
+            soundNotifications.Checked = userPreferences.PlaySoundNotifications;
         }
 
         private void OnCancelButtonClick(object sender, System.EventArgs e)
@@ -40,6 +41,7 @@ private void OnOkButtonClick(object sender, System.EventArgs e)
                 newPreferences.SetIntervalDuration(IntervalType.LongBreak, Duration.InMinutes((int)longBreakDurationTextBox.Value));
                 newPreferences.MaxPomodoroCount = (int)maxPomodoroCountTextBox.Value;
                 newPreferences.ShowToastNotifications = toastNotification.Checked;
+                newPreferences.PlaySoundNotifications = soundNotifications.Checked;
             });
 
             Close();
diff --git a/Tomighty.Windows/Properties/Resources.Designer.cs b/Tomighty.Windows/Properties/Resources.Designer.cs
index a71a959..0dc5c10 100644
--- a/Tomighty.Windows/Properties/Resources.Designer.cs
+++ b/Tomighty.Windows/Properties/Resources.Designer.cs
@@ -60,6 +60,15 @@ internal Resources() {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized resource of type System.IO.UnmanagedMemoryStream similar to System.IO.MemoryStream.
+        /// </summary>
+        internal static System.IO.UnmanagedMemoryStream audio_deskbell {
+            get {
+                return ResourceManager.GetStream("audio_deskbell", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized resource of type System.Drawing.Icon similar to (Icon).
         /// </summary>
diff --git a/Tomighty.Windows/Properties/Resources.resx b/Tomighty.Windows/Properties/Resources.resx
index 8de566d..38f50b0 100644
--- a/Tomighty.Windows/Properties/Resources.resx
+++ b/Tomighty.Windows/Properties/Resources.resx
@@ -172,4 +172,7 @@
   <data name="toast_template_interval_completed" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\Toasts\interval-completed.xml;System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089;utf-8</value>
   </data>
+  <data name="audio_deskbell" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Audio\deskbell.wav;System.IO.MemoryStream, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/Tomighty.Windows/Resources/Audio/deskbell.wav b/Tomighty.Windows/Resources/Audio/deskbell.wav
new file mode 100644
index 0000000..2837ba9
Binary files /dev/null and b/Tomighty.Windows/Resources/Audio/deskbell.wav differ
diff --git a/Tomighty.Windows/Tomighty.Windows.csproj b/Tomighty.Windows/Tomighty.Windows.csproj
index 35c90f1..850e595 100644
--- a/Tomighty.Windows/Tomighty.Windows.csproj
+++ b/Tomighty.Windows/Tomighty.Windows.csproj
@@ -88,6 +88,7 @@
     </Compile>
     <Compile Include="About\AboutWindowPresenter.cs" />
     <Compile Include="IntervalTypeExtensions.cs" />
+    <Compile Include="Notifications\SoundNotificationPlayer.cs" />
     <Compile Include="Preferences\UserPreferencesPresenter.cs" />
     <Compile Include="Tray\ITrayMenu.cs" />
     <Compile Include="Tray\ITrayMenuMutator.cs" />
@@ -153,6 +154,7 @@
     <None Include="Resources\icon_tomato_green.ico" />
     <None Include="Resources\icon_tomato_red.ico" />
     <None Include="Resources\icon_tomato_white.ico" />
+    <Content Include="Resources\Audio\deskbell.wav" />
     <Content Include="Resources\image_clock.tiff" />
     <Content Include="Resources\image_tomato_black.tiff" />
     <Content Include="Resources\image_tomato_blue.tiff" />
diff --git a/Tomighty.Windows/TomightyApplication.cs b/Tomighty.Windows/TomightyApplication.cs
index 5e0943f..f85d741 100644
--- a/Tomighty.Windows/TomightyApplication.cs
+++ b/Tomighty.Windows/TomightyApplication.cs
@@ -31,6 +31,7 @@ public TomightyApplication()
             new TrayIconController(trayIcon, timerWindowPresenter, eventHub);
             new TrayMenuController(trayMenu, this, pomodoroEngine, eventHub);
             new NotificationsPresenter(pomodoroEngine, userPreferences, eventHub);
+            new SoundNotificationPlayer(userPreferences, eventHub);
 
             var aboutWindowPresenter = new AboutWindowPresenter();
             var userPreferencesPresenter = new UserPreferencesPresenter(userPreferences);