diff --git a/README.md b/README.md
index 7de79c4..1b79334 100644
--- a/README.md
+++ b/README.md
@@ -511,6 +511,15 @@ sudo systemsetup -setcomputersleep 60
 sudo systemsetup -setcomputersleep Never
 ```
 
+#### Play chime sound when MagSafe is connected (iPhone charging sound)
+```bash
+defaults write com.apple.PowerChime ChimeOnAllHardware -bool true; open /System/Library/CoreServices/PowerChime.app
+```
+
+#### Disable chime sound when MagSafe is connected
+```bash
+defaults write com.apple.PowerChime ChimeOnAllHardware -bool false; open /System/Library/CoreServices/PowerChime.app
+```
 
 ## Input Devices