diff --git a/apps/main/apps.cpp b/apps/main/apps.cpp
index 69196e5..04ea58e 100644
--- a/apps/main/apps.cpp
+++ b/apps/main/apps.cpp
@@ -18,6 +18,7 @@
 #include "ibrt.h"
 #include "key_handler.h"
 #include "led_control.h"
+#include "rb_codec.h"
 
 #ifdef BTIF_BLE_APP_DATAPATH_SERVER
 #include "app_ble_cmd_handler.h"
@@ -71,12 +72,6 @@ enum APP_POWERON_CASE_T {
   APP_POWERON_CASE_NUM
 };
 
-#ifdef RB_CODEC
-extern int rb_ctl_init();
-extern bool rb_ctl_is_init_done(void);
-extern void app_rbplay_audio_reset_pause_status(void);
-#endif
-
 #ifdef __SUPPORT_ANC_SINGLE_MODE_WITHOUT_BT__
 extern bool app_pwr_key_monitor_get_val(void);
 static bool anc_single_mode_on = false;
@@ -821,7 +816,6 @@ extern "C" void app_bt_key(APP_KEY_STATUS *status, void *param) {
   }
 }
 
-
 void app_voice_assistant_key(APP_KEY_STATUS *status, void *param) {
   TRACE(2, "%s event %d", __func__, status->event);
 #if defined(BISTO_ENABLED) || defined(__AI_VOICE__)
diff --git a/apps/main/ibrt.h b/apps/main/ibrt.h
index a3183a0..6833296 100644
--- a/apps/main/ibrt.h
+++ b/apps/main/ibrt.h
@@ -1,5 +1,4 @@
-#ifndef IBRT_H_
-#define IBRT_H_
+#pragma once 
 #include <stdint.h>
 
 #ifdef __cplusplus
@@ -13,4 +12,4 @@ uint8_t get_nv_role(void);
 #ifdef __cplusplus
 };
 #endif
-#endif
\ No newline at end of file
+
diff --git a/apps/main/key_handler.h b/apps/main/key_handler.h
index 7618ab8..29ebbd4 100644
--- a/apps/main/key_handler.h
+++ b/apps/main/key_handler.h
@@ -1,7 +1,5 @@
-#ifndef KEY_HANDLER_H_
-#define KEY_HANDLER_H_
+#pragma once
 
 void app_key_init(void);
 
 void app_key_init_on_charging(void);
-#endif
\ No newline at end of file
diff --git a/apps/main/led_control.h b/apps/main/led_control.h
index c9ede3d..252705d 100644
--- a/apps/main/led_control.h
+++ b/apps/main/led_control.h
@@ -1,9 +1,6 @@
-#ifndef LED_CONTROL_H_
-#define LED_CONTROL_H_
+#pragma once
 
 void LED_statusinit(void);
 void startLED_status(int ms);
 void stopLED_status(void);
 void LED_statusfun(const void *);
-
-#endif
\ No newline at end of file
diff --git a/apps/main/rb_codec.h b/apps/main/rb_codec.h
new file mode 100644
index 0000000..a359d84
--- /dev/null
+++ b/apps/main/rb_codec.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#ifdef RB_CODEC
+extern int rb_ctl_init();
+extern bool rb_ctl_is_init_done(void);
+extern void app_rbplay_audio_reset_pause_status(void);
+#endif
\ No newline at end of file