diff --git a/Example1/BinaryMessage.cs b/Example1/BinaryMessage.cs
new file mode 100644
index 00000000..eafa7aa9
--- /dev/null
+++ b/Example1/BinaryMessage.cs
@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using WebSocketSharp;
+
+namespace Example1
+{
+  internal class BinaryMessage
+  {
+    public uint UserID {
+      get; set;
+    }
+
+    public byte ChannelNumber {
+      get; set;
+    }
+
+    public uint BufferLength {
+      get; set;
+    }
+
+    public float[,] BufferArray {
+      get; set;
+    }
+
+    public static BinaryMessage Parse (byte[] data)
+    {
+      var id = data.SubArray (0, 4).To<uint> (ByteOrder.Big);
+      var num = data.SubArray (4, 1)[0];
+      var len = data.SubArray (5, 4).To<uint> (ByteOrder.Big);
+      var arr = new float[num, len];
+
+      var offset = 9;
+      ((uint) num).Times (
+        i =>
+          len.Times (
+            j => {
+              arr[i, j] = data.SubArray (offset, 4).To<float> (ByteOrder.Big);
+              offset += 4;
+            }
+          )
+      );
+
+      return new BinaryMessage {
+               UserID = id,
+               ChannelNumber = num,
+               BufferLength = len,
+               BufferArray = arr
+             };
+    }
+
+    public byte[] ToArray ()
+    {
+      var buff = new List<byte> ();
+
+      var id = UserID;
+      var num = ChannelNumber;
+      var len = BufferLength;
+      var arr = BufferArray;
+
+      buff.AddRange (id.ToByteArray (ByteOrder.Big));
+      buff.Add (num);
+      buff.AddRange (len.ToByteArray (ByteOrder.Big));
+
+      ((uint) num).Times (
+        i =>
+          len.Times (
+            j => buff.AddRange (arr[i, j].ToByteArray (ByteOrder.Big))
+          )
+      );
+
+      return buff.ToArray ();
+    }
+  }
+}
diff --git a/Example1/Example1.csproj b/Example1/Example1.csproj
index 903f5b04..1e3425ae 100644
--- a/Example1/Example1.csproj
+++ b/Example1/Example1.csproj
@@ -66,6 +66,7 @@
     <Compile Include="TextMessage.cs" />
     <Compile Include="NotificationMessage.cs" />
     <Compile Include="Notifier.cs" />
+    <Compile Include="BinaryMessage.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>