diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 700cf4e..baac3e7 100755
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -14,6 +14,14 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+        <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK" />
+
+        <service
+            android:name=".Alert"
+            android:foregroundServiceType="mediaPlayback"
+            android:exported="false" />
     </application>
 
 </manifest>
diff --git a/app/src/main/java/com/hyperling/apps/infinitetimer/Alert.java b/app/src/main/java/com/hyperling/apps/infinitetimer/Alert.java
new file mode 100644
index 0000000..afbb670
--- /dev/null
+++ b/app/src/main/java/com/hyperling/apps/infinitetimer/Alert.java
@@ -0,0 +1,125 @@
+package com.hyperling.apps.infinitetimer;
+
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.Intent;
+import android.media.MediaPlayer;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Looper;
+import android.support.v4.app.NotificationCompat;
+import android.util.Log;
+
+public class Alert extends Service {
+
+    boolean DEBUG = true;
+    String TAG = "Alert.", tag;
+    private static final String CHANNEL_ID = "alert_service_channel";
+    private static final int NOTIFICATION_ID = 1;
+
+    Uri ringtoneUri;
+    private MediaPlayer mediaPlayer;
+    private Handler handler = new Handler(Looper.getMainLooper());
+    private long intervalMs; // user-defined frequency
+
+    private final Runnable alertRunnable = new Runnable() {
+        @Override
+        public void run() {
+            playAlert();
+            handler.postDelayed(this, intervalMs);
+        }
+    };
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        tag = TAG + "onStartCommand";
+
+        if (intent != null) {
+            intervalMs = intent.getLongExtra("interval_ms", 5000L);
+        }
+
+        createNotificationChannel();
+        startForeground(NOTIFICATION_ID, buildNotification());
+
+        // Start the alert loop (your original Runnable logic)
+        handler.post(alertRunnable);
+
+        return START_STICKY;
+    }
+
+    private void playAlert() {
+        // Your existing audio playback code goes here
+        if (mediaPlayer == null) {
+            ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
+            if (DEBUG) Log.d(tag, "ringtoneUri=" + ringtoneUri.toString());
+            mediaPlayer = MediaPlayer.create(this, ringtoneUri);
+            if (mediaPlayer == null) {
+                if (DEBUG) Log.d(tag, "Media Player is null, trying alarm");
+                ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
+                mediaPlayer = MediaPlayer.create(this, ringtoneUri);
+            }
+            if (mediaPlayer == null) {
+                if (DEBUG) Log.d(tag, "Media Player is null, trying ringtone");
+                ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
+                mediaPlayer = MediaPlayer.create(this, ringtoneUri);
+            }
+            if (mediaPlayer == null) {
+                if (DEBUG) Log.d(tag, "Media Player is null, trying all");
+                ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALL);
+                mediaPlayer = MediaPlayer.create(this, ringtoneUri);
+            }
+            if (mediaPlayer == null) {
+                if (DEBUG) Log.d(tag, "Media Player is null, trying local sound byte");
+                mediaPlayer = MediaPlayer.create(this, R.raw.chime_sound_7143);
+            }
+            mediaPlayer.seekTo(0);
+            mediaPlayer.start();
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        handler.removeCallbacks(alertRunnable);
+        if (mediaPlayer != null) {
+            mediaPlayer.release();
+            mediaPlayer = null;
+        }
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private Notification buildNotification() {
+        Intent notificationIntent = new Intent(this, MainActivity.class);
+        PendingIntent pendingIntent = PendingIntent.getActivity(
+                this, 0, notificationIntent,
+                PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE
+        );
+
+        return new NotificationCompat.Builder(this, CHANNEL_ID)
+                .setContentTitle("Alert Service Running")
+                .setContentText("Playing alerts at " + intervalMs + "ms intervals")
+                .setSmallIcon(R.drawable.ic_notification)
+                .setOngoing(true)
+                .setContentIntent(pendingIntent)
+                .build();
+    }
+
+    private void createNotificationChannel() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel channel = new NotificationChannel(
+                    CHANNEL_ID, "Alert Service", NotificationManager.IMPORTANCE_LOW);
+            getSystemService(NotificationManager.class)
+                    .createNotificationChannel(channel);
+        }
+    }
+}
\ No newline at end of file