diff --git a/nx/include/switch/services/btdrv.h b/nx/include/switch/services/btdrv.h
index 0495e0ac..30669934 100644
--- a/nx/include/switch/services/btdrv.h
+++ b/nx/include/switch/services/btdrv.h
@@ -1454,6 +1454,38 @@ Result btdrvAcquireAudioConnectionStateChangedEvent(Event* out_event, bool autoc
  */
 Result btdrvGetConnectedAudioDevice(BtdrvAddress *addrs, s32 count, s32 *total_out);
 
+/**
+ * @brief CloseAudioControlInput
+ * @note Only available on [13.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ */
+Result btdrvCloseAudioControlInput(BtdrvAddress addr);
+
+/**
+ * @brief RegisterAudioControlNotification
+ * @note Only available on [13.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ * @param[in] event_type AvrcEventType
+ */
+Result btdrvRegisterAudioControlNotification(BtdrvAddress addr, u32 event_type);
+
+/**
+ * @brief SendAudioControlPassthroughCommand
+ * @note Only available on [13.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ * @param[in] op_id AvrcOperationId
+ * @param[in] state_type AvrcStateType
+ */
+Result btdrvSendAudioControlPassthroughCommand(BtdrvAddress addr, u32 op_id, u32 state_type);
+
+/**
+ * @brief SendAudioControlSetAbsoluteVolumeCommand
+ * @note Only available on [13.0.0+].
+ * @param[in] addr \ref BtdrvAddress
+ * @param[in] val Input value
+ */
+Result btdrvSendAudioControlSetAbsoluteVolumeCommand(BtdrvAddress addr, s32 val);
+
 /**
  * @brief IsManufacturingMode
  * @note Only available on [5.0.0+].
diff --git a/nx/source/services/btdrv.c b/nx/source/services/btdrv.c
index cae59526..1c67a95a 100644
--- a/nx/source/services/btdrv.c
+++ b/nx/source/services/btdrv.c
@@ -71,7 +71,7 @@ static Result _btdrvCmdInAddrNoOut(BtdrvAddress addr, u32 cmd_id) {
     return serviceDispatchIn(&g_btdrvSrv, cmd_id, addr);
 }
 
-static Result _btmCmdInAddrU8NoOut(BtdrvAddress addr, u8 inval, u32 cmd_id) {
+static Result _btdrvCmdInAddrU8NoOut(BtdrvAddress addr, u8 inval, u32 cmd_id) {
     const struct {
         BtdrvAddress addr;
         u8 inval;
@@ -80,6 +80,27 @@ static Result _btmCmdInAddrU8NoOut(BtdrvAddress addr, u8 inval, u32 cmd_id) {
     return serviceDispatchIn(&g_btdrvSrv, cmd_id, in);
 }
 
+static Result _btdrvCmdInAddrU32NoOut(BtdrvAddress addr, u32 inval, u32 cmd_id) {
+    const struct {
+        BtdrvAddress addr;
+        u8 pad[2];
+        u32 inval;
+    } in = { addr, {0}, inval };
+
+    return serviceDispatchIn(&g_btdrvSrv, cmd_id, in);
+}
+
+static Result _btdrvCmdInAddrU32U32NoOut(BtdrvAddress addr, u32 inval0, u32 inval1, u32 cmd_id) {
+    const struct {
+        BtdrvAddress addr;
+        u8 pad[2];
+        u32 inval0;
+        u32 inval1;
+    } in = { addr, {0}, inval0, inval1 };
+
+    return serviceDispatchIn(&g_btdrvSrv, cmd_id, in);
+}
+
 static Result _btdrvCmdInLeConnectionParameterNoOut(const BtdrvLeConnectionParams *param, u32 cmd_id) {
     return serviceDispatchIn(&g_btdrvSrv, cmd_id, *param);
 }
@@ -268,13 +289,7 @@ Result btdrvCreateBond(BtdrvAddress addr, u32 type) {
         );
     }
 
-    const struct {
-        BtdrvAddress addr;
-        u8 pad[2];
-        u32 type;
-    } in = { addr, {0}, type };
-
-    return serviceDispatchIn(&g_btdrvSrv, 10, in);
+    return _btdrvCmdInAddrU32NoOut(addr, type, 10);
 }
 
 Result btdrvRemoveBond(BtdrvAddress addr) {
@@ -436,11 +451,11 @@ Result btdrvGetHidEventInfo(void* buffer, size_t size, BtdrvHidEventType *type)
 }
 
 Result btdrvSetTsi(BtdrvAddress addr, u8 tsi) {
-    return _btmCmdInAddrU8NoOut(addr, tsi, 28);
+    return _btdrvCmdInAddrU8NoOut(addr, tsi, 28);
 }
 
 Result btdrvEnableBurstMode(BtdrvAddress addr, bool flag) {
-    return _btmCmdInAddrU8NoOut(addr, flag!=0, 29);
+    return _btdrvCmdInAddrU8NoOut(addr, flag!=0, 29);
 }
 
 Result btdrvSetZeroRetransmission(BtdrvAddress addr, u8 *report_ids, u8 count) {
@@ -1389,6 +1404,34 @@ Result btdrvGetConnectedAudioDevice(BtdrvAddress *addrs, s32 count, s32 *total_o
     return _btdrvCmdOutU32OutBuf(addrs, count*sizeof(BtdrvAddress), (u32*)total_out, 145);
 }
 
+Result btdrvCloseAudioControlInput(BtdrvAddress addr) {
+    if (hosversionBefore(13,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInAddrNoOut(addr, 146);
+}
+
+Result btdrvRegisterAudioControlNotification(BtdrvAddress addr, u32 event_type) {
+    if (hosversionBefore(13,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInAddrU32NoOut(addr, event_type, 147);
+}
+
+Result btdrvSendAudioControlPassthroughCommand(BtdrvAddress addr, u32 op_id, u32 state_type) {
+    if (hosversionBefore(13,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInAddrU32U32NoOut(addr, op_id, state_type, 148);
+}
+
+Result btdrvSendAudioControlSetAbsoluteVolumeCommand(BtdrvAddress addr, s32 val) {
+    if (hosversionBefore(13,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _btdrvCmdInAddrU32NoOut(addr, (u32)val, 149);
+}
+
 Result btdrvIsManufacturingMode(bool *out) {
     if (hosversionBefore(5,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);