diff --git a/broadcastradio/2.0/Android.bp b/broadcastradio/2.0/Android.bp
index 7409005..2434fdc 100644
--- a/broadcastradio/2.0/Android.bp
+++ b/broadcastradio/2.0/Android.bp
@@ -8,7 +8,7 @@
     },
     srcs: [
         "types.hal",
-        "IAnnouncementObserver.hal",
+        "IAnnouncementListener.hal",
         "IBroadcastRadio.hal",
         "ICloseHandle.hal",
         "ITunerCallback.hal",
diff --git a/broadcastradio/2.0/IAnnouncementObserver.hal b/broadcastradio/2.0/IAnnouncementListener.hal
similarity index 85%
rename from broadcastradio/2.0/IAnnouncementObserver.hal
rename to broadcastradio/2.0/IAnnouncementListener.hal
index c91e29a..1b4960c 100644
--- a/broadcastradio/2.0/IAnnouncementObserver.hal
+++ b/broadcastradio/2.0/IAnnouncementListener.hal
@@ -16,11 +16,11 @@
 package android.hardware.broadcastradio@2.0;
 
 /**
- * Callback interface for announcement observer.
+ * Callback interface for announcement listener.
  *
- * For typical configuration, the observer is a broadcast radio service.
+ * For typical configuration, the listener is a broadcast radio service.
  */
-interface IAnnouncementObserver {
+interface IAnnouncementListener {
     /**
      * Called whenever announcement list has changed.
      *
diff --git a/broadcastradio/2.0/IBroadcastRadio.hal b/broadcastradio/2.0/IBroadcastRadio.hal
index 7578f44..bedc362 100644
--- a/broadcastradio/2.0/IBroadcastRadio.hal
+++ b/broadcastradio/2.0/IBroadcastRadio.hal
@@ -15,7 +15,7 @@
 
 package android.hardware.broadcastradio@2.0;
 
-import IAnnouncementObserver;
+import IAnnouncementListener;
 import ICloseHandle;
 import ITunerCallback;
 import ITunerSession;
@@ -104,7 +104,7 @@
     getImage(uint32_t id) generates (vec<uint8_t> image);
 
     /**
-     * Registers announcement observer.
+     * Registers announcement listener.
      *
      * If there is at least one observer registered, HAL implementation must
      * notify about announcements even if no sessions are active.
@@ -113,15 +113,15 @@
      * automatically.
      *
      * @param enabled The list of announcement types to watch for.
-     * @param cb The callback interface.
+     * @param listener The listener interface.
      * @return result OK in case of success.
      *                NOT_SUPPORTED if the tuner doesn't support announcements.
      * @return closeHandle A handle to unregister observer,
      *                     nullptr if result was not OK.
      */
-    registerAnnouncementObserver(
+    registerAnnouncementListener(
             vec<AnnouncementType> enabled,
-            IAnnouncementObserver cb
+            IAnnouncementListener listener
         ) generates (
             Result result,
             ICloseHandle closeHandle
diff --git a/broadcastradio/2.0/default/BroadcastRadio.cpp b/broadcastradio/2.0/default/BroadcastRadio.cpp
index d16aaff..aa5afad 100644
--- a/broadcastradio/2.0/default/BroadcastRadio.cpp
+++ b/broadcastradio/2.0/default/BroadcastRadio.cpp
@@ -141,9 +141,9 @@
     return {};
 }
 
-Return<void> BroadcastRadio::registerAnnouncementObserver(
-    const hidl_vec<AnnouncementType>& enabled, const sp<IAnnouncementObserver>& /* cb */,
-    registerAnnouncementObserver_cb _hidl_cb) {
+Return<void> BroadcastRadio::registerAnnouncementListener(
+    const hidl_vec<AnnouncementType>& enabled, const sp<IAnnouncementListener>& /* listener */,
+    registerAnnouncementListener_cb _hidl_cb) {
     ALOGV("%s(%s)", __func__, toString(enabled).c_str());
 
     _hidl_cb(Result::NOT_SUPPORTED, nullptr);
diff --git a/broadcastradio/2.0/default/BroadcastRadio.h b/broadcastradio/2.0/default/BroadcastRadio.h
index 7904946..8c14d9e 100644
--- a/broadcastradio/2.0/default/BroadcastRadio.h
+++ b/broadcastradio/2.0/default/BroadcastRadio.h
@@ -36,9 +36,9 @@
     Return<void> getDabRegionConfig(getDabRegionConfig_cb _hidl_cb);
     Return<void> openSession(const sp<ITunerCallback>& callback, openSession_cb _hidl_cb) override;
     Return<void> getImage(uint32_t id, getImage_cb _hidl_cb);
-    Return<void> registerAnnouncementObserver(const hidl_vec<AnnouncementType>& enabled,
-                                              const sp<IAnnouncementObserver>& cb,
-                                              registerAnnouncementObserver_cb _hidl_cb);
+    Return<void> registerAnnouncementListener(const hidl_vec<AnnouncementType>& enabled,
+                                              const sp<IAnnouncementListener>& listener,
+                                              registerAnnouncementListener_cb _hidl_cb);
 
     std::reference_wrapper<const VirtualRadio> mVirtualRadio;
     Properties mProperties;
diff --git a/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp b/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
index 1111478..8d9d622 100644
--- a/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
+++ b/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
@@ -90,7 +90,7 @@
     utils::ProgramInfoSet mProgramList;
 };
 
-struct AnnouncementObserverMock : public IAnnouncementObserver {
+struct AnnouncementListenerMock : public IAnnouncementListener {
     MOCK_METHOD1(onListUpdated, Return<void>(const hidl_vec<Announcement>&));
 };
 
@@ -702,15 +702,15 @@
 }
 
 /**
- * Test announcement observer registration.
+ * Test announcement listener registration.
  *
  * Verifies that:
- *  - registerAnnouncementObserver either succeeds or returns NOT_SUPPORTED;
+ *  - registerAnnouncementListener either succeeds or returns NOT_SUPPORTED;
  *  - if it succeeds, it returns a valid close handle (which is a nullptr otherwise);
  *  - closing handle does not crash.
  */
-TEST_F(BroadcastRadioHalTest, AnnouncementObserverRegistration) {
-    sp<AnnouncementObserverMock> observer = new AnnouncementObserverMock();
+TEST_F(BroadcastRadioHalTest, AnnouncementListenerRegistration) {
+    sp<AnnouncementListenerMock> listener = new AnnouncementListenerMock();
 
     Result halResult = Result::UNKNOWN_ERROR;
     sp<ICloseHandle> closeHandle = nullptr;
@@ -720,7 +720,7 @@
     };
 
     auto hidlResult =
-        mModule->registerAnnouncementObserver({AnnouncementType::EMERGENCY}, observer, cb);
+        mModule->registerAnnouncementListener({AnnouncementType::EMERGENCY}, listener, cb);
     ASSERT_TRUE(hidlResult.isOk());
 
     if (halResult == Result::NOT_SUPPORTED) {