diff --git a/websocket-sharp/WebSocket.cs b/websocket-sharp/WebSocket.cs
index d524f632..7dd909f7 100644
--- a/websocket-sharp/WebSocket.cs
+++ b/websocket-sharp/WebSocket.cs
@@ -3420,23 +3420,35 @@ namespace WebSocketSharp
     }
 
     /// <summary>
-    /// Sends the specified <paramref name="length"/> of data from
-    /// the specified <paramref name="stream"/> asynchronously using
+    /// Sends the data from <paramref name="stream"/> asynchronously using
     /// the WebSocket connection.
     /// </summary>
     /// <remarks>
-    /// This method does not wait for the send to be complete.
+    ///   <para>
+    ///   The data is sent as the binary data.
+    ///   </para>
+    ///   <para>
+    ///   This method does not wait for the send to be complete.
+    ///   </para>
     /// </remarks>
     /// <param name="stream">
-    /// A <see cref="Stream"/> from which reads the binary data to send.
+    /// A <see cref="Stream"/> instance from which to read the data to send.
     /// </param>
     /// <param name="length">
-    /// An <see cref="int"/> that specifies the number of bytes to read and send.
+    /// An <see cref="int"/> that specifies the number of bytes to send.
     /// </param>
     /// <param name="completed">
-    /// An <c>Action&lt;bool&gt;</c> delegate that invokes the method called when
-    /// the send is complete. A <see cref="bool"/> passed to this delegate will be
-    /// <c>true</c> if the send has done with no error.
+    ///   <para>
+    ///   An <c>Action&lt;bool&gt;</c> delegate or <see langword="null"/>
+    ///   if not needed.
+    ///   </para>
+    ///   <para>
+    ///   The delegate invokes the method called when the send is complete.
+    ///   </para>
+    ///   <para>
+    ///   <c>true</c> is passed to the method if the send has done with
+    ///   no error; otherwise, <c>false</c>.
+    ///   </para>
     /// </param>
     /// <exception cref="InvalidOperationException">
     /// The current state of the connection is not Open.