diff --git a/include/soundtrigger/SoundTriggerCallback.h b/include/soundtrigger/SoundTriggerCallback.h
new file mode 100644
index 0000000..8a5ba02
--- /dev/null
+++ b/include/soundtrigger/SoundTriggerCallback.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_CALLBACK_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_CALLBACK_H
+
+#include <utils/RefBase.h>
+#include <system/sound_trigger.h>
+
+namespace android {
+
+class SoundTriggerCallback : public RefBase
+{
+public:
+
+            SoundTriggerCallback() {}
+    virtual ~SoundTriggerCallback() {}
+
+    virtual void onRecognitionEvent(struct sound_trigger_recognition_event *event) = 0;
+
+    virtual void onServiceDied() = 0;
+
+};
+
+}; // namespace android
+
+#endif //ANDROID_HARDWARE_SOUNDTRIGGER_CALLBACK_H