diff --git a/app/src/main/java/org/ntlab/amaryllis/client/PlaySoundService.java b/app/src/main/java/org/ntlab/amaryllis/client/PlaySoundService.java
new file mode 100644
index 0000000..468731c
--- /dev/null
+++ b/app/src/main/java/org/ntlab/amaryllis/client/PlaySoundService.java
@@ -0,0 +1,16 @@
+package org.ntlab.amaryllis.client;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.IBinder;
+
+public class PlaySoundService extends Service {
+    public PlaySoundService() {
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        // TODO: Return the communication channel to the service.
+        throw new UnsupportedOperationException("Not yet implemented");
+    }
+}