diff --git a/docs/USAGE.md b/docs/USAGE.md
index bce6391..35234f8 100644
--- a/docs/USAGE.md
+++ b/docs/USAGE.md
@@ -11,9 +11,10 @@ tuimble --host mumble.example.com --user myname
 
 | Key | Action |
 |-----|--------|
-| `q` | Quit |
+| `F1` | Toggle self-deafen |
 | `F4` | Push-to-talk (configurable) |
 | `Enter` | Send message |
+| `q` | Quit |
 | `Ctrl+C` | Quit |
 
 ## Push-to-Talk Modes
diff --git a/src/tuimble/app.py b/src/tuimble/app.py
index 375f2ec..145c8dd 100644
--- a/src/tuimble/app.py
+++ b/src/tuimble/app.py
@@ -53,6 +53,7 @@ class StatusBar(Static):
 
     ptt_active = reactive(False)
     connected = reactive(False)
+    self_deaf = reactive(False)
     server_info = reactive("")
 
     def render(self) -> str:
@@ -67,17 +68,20 @@ class StatusBar(Static):
 
         if self.ptt_active:
             ptt_sym = "[#e0af68]\u25cf[/]"
-            ptt_full = f"{ptt_sym} TX"
+            ptt_full = f"{ptt_sym} [bold]TX[/bold]"
         else:
             ptt_sym = "[#565f89]\u25cb[/]"
             ptt_full = f"{ptt_sym} idle"
 
+        deaf_sym = "[#f7768e]\u2298[/]" if self.self_deaf else ""
+        deaf_full = "[#f7768e]\u2298[/] deaf" if self.self_deaf else ""
+
         if w < 40:
-            return f" {conn_sym} {ptt_sym}"
+            return f" {conn_sym} {deaf_sym}{ptt_sym}"
         if w < 60:
-            return f" {conn_full}  {ptt_full}"
+            return f" {conn_full}  {deaf_full}{'  ' if deaf_full else ''}{ptt_full}"
         info = f"  [dim]{self.server_info}[/]" if self.server_info else ""
-        return f" {conn_full}  {ptt_full}{info}"
+        return f" {conn_full}  {deaf_full}{'  ' if deaf_full else ''}{ptt_full}{info}"
 
 
 class ChannelTree(Static):
@@ -238,6 +242,7 @@ class TuimbleApp(App):
     """
 
     BINDINGS = [
+        ("f1", "toggle_deaf", "Deafen"),
         ("q", "quit", "Quit"),
         ("ctrl+c", "quit", "Quit"),
     ]
@@ -406,6 +411,21 @@ class TuimbleApp(App):
         tree = self.query_one("#sidebar", ChannelTree)
         tree.set_state(channels, users_by_channel)
 
+    # -- deafen --------------------------------------------------------------
+
+    def action_toggle_deaf(self) -> None:
+        """Toggle self-deafen."""
+        deafened = not self._audio.deafened
+        self._audio.deafened = deafened
+        self._client.set_self_deaf(deafened)
+        status = self.query_one("#status", StatusBar)
+        status.self_deaf = deafened
+        chatlog = self.query_one("#chatlog", ChatLog)
+        if deafened:
+            chatlog.write("[#f7768e]\u2298 deafened[/]")
+        else:
+            chatlog.write("[#9ece6a]\u2713 undeafened[/]")
+
     # -- PTT -----------------------------------------------------------------
 
     def on_key(self, event: events.Key) -> None: