diff --git a/docs/examples/multiplexing/README.md b/docs/examples/multiplexing/README.md
index 4964769..97e9db3 100644
--- a/docs/examples/multiplexing/README.md
+++ b/docs/examples/multiplexing/README.md
@@ -4,6 +4,24 @@
 
 blinksocks supports TCP/TLS/WS multiplexing.
 
+```
++--------+  Conn 1  +-----------+                       +-----------+  Conn 1  +--------+
+|        <---------->           |                       |           <---------->        |
+|        |  Conn 2  |           |    Mux Connections    |           |  Conn 2  |        |
+|        <---------->           <----------------------->           <----------+        |
+|  Apps  |  Conn 3  | bs-client |          ...          | bs-server |  Conn 3  |  Dest  |
+|        <---------->           <----------------------->           <---------->        |
+|        |  Conn 4  |           |                       |           |  Conn 4  |        |
+|        <---------->           |                       |           <---------->        |
++--------+          +-----------+                       +-----------+          +--------+
+```
+
+Multiplexing can:
+
+* Reduce the number of connections between bs-client and bs-server.
+* Eliminate three-way handshake of TCP and reduce connection latency.
+* Obfuscating traffic characteristics.
+
 You can enable this feature easily by setting `"mux": true` on both client and server, and set `"mux_concurrency": <number>` on client.
 
 1. Client config