diff --git a/src/W800_SDK_v1.00.10/app/gfx/music_player_screen.h b/src/W800_SDK_v1.00.10/app/gfx/music_player_screen.h
index 75f1b92..1045d07 100644
--- a/src/W800_SDK_v1.00.10/app/gfx/music_player_screen.h
+++ b/src/W800_SDK_v1.00.10/app/gfx/music_player_screen.h
@@ -58,6 +58,12 @@ typedef struct MusicPlayerScreen
     bool ble_connection_state;
 } MusicPlayerScreen_t;
 
+/**
+ * @brief Initializes the music player screen's context object
+ * @note This function has to be called first before any others
+ * 
+ * @param musicPlayerScreen a pointer to the music player screen's context structure to initialize.
+ */
 void music_player_screen_init(MusicPlayerScreen_t * const musicPlayerScreen);
 
 void music_player_screen_register_music_playback_control_cb(MusicPlayerScreen_t * const musicPlayerScreen, MusicPlaybackCtrlCb_t musicPlaybackCtrlCb);
@@ -76,8 +82,18 @@ void music_player_screen_set_music_playing_state(MusicPlayerScreen_t * const mus
 
 bool music_player_screen_is_in_use(MusicPlayerScreen_t * const musicPlayerScreen);
 
+/**
+ * @brief Graphically builds the music player screen.
+ * 
+ * @param musicPlayerScreen a pointer to  the music player screen's context structure to initialize.
+ */
 void music_player_screen_create(MusicPlayerScreen_t * const musicPlayerScreen);
 
+/**
+ * @brief Frees all resources used by the MusicPlayerScreen object.
+ * 
+ * @param musicPlayerScreen a pointer to  the music player screen's context structure to initialize.
+ */
 void music_player_screen_destroy(MusicPlayerScreen_t * const musicPlayerScreen);
 
 #endif // MUSIC_PLAYER_SCREEN_H
diff --git a/src/W800_SDK_v1.00.10/app/gfx/watch_face.h b/src/W800_SDK_v1.00.10/app/gfx/watch_face.h
index 9aed859..317995b 100644
--- a/src/W800_SDK_v1.00.10/app/gfx/watch_face.h
+++ b/src/W800_SDK_v1.00.10/app/gfx/watch_face.h
@@ -113,7 +113,7 @@ void watch_face_register_battery_indicator_cb(WatchFace_t * const watchFace, Bat
 void watch_face_register_step_counter_indicator_cb(WatchFace_t * const watchFace, StepCounterIndicatorCb_t stepCounterIndicatorCb);
 
 /**
- * @brief Graphically builds the watch face 
+ * @brief Graphically builds the watch face.
  * 
  * @param watchFace a pointer to the watch face context structure.
  */
@@ -168,7 +168,7 @@ void watch_face_force_sync(WatchFace_t * const watchFace);
 bool watch_face_is_in_use(WatchFace_t * const watchFace);
 
 /**
- * @brief Frees all resources used by the WatchFace object
+ * @brief Frees all resources used by the WatchFace object.
  * 
  * @param watchFace a pointer to the watch face context structure.
  */