diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..5503b9f
Binary files /dev/null and b/.DS_Store differ
diff --git a/asset/SEGA.mp3 b/asset/SEGA.mp3
new file mode 100644
index 0000000..efd2369
Binary files /dev/null and b/asset/SEGA.mp3 differ
diff --git a/index.html b/index.html
index 753a56f..27ce08a 100644
--- a/index.html
+++ b/index.html
@@ -24,7 +24,7 @@
                 <button class="btn-block btn-primary-outline" name="stop" onclick="stopTimer();">STOP</button>
             </div>
 
-            <audio id="alarm" src="asset/alarm-clock-short.mp3" preload="auto"></audio>
+            <audio id="alarm" src="asset/SEGA.mp3" preload="auto"></audio>
             <script src="pomodoro.js"></script>
 
         </div>