diff --git a/android/app/jni/com_android_bluetooth_btservice_AdapterService.cpp b/android/app/jni/com_android_bluetooth_btservice_AdapterService.cpp
index 1c86ca889eee995b01382ed74387ca83b7334bf5..dea349908bbc4b80fa1fc92c2e2535674de43b6b 100644
--- a/android/app/jni/com_android_bluetooth_btservice_AdapterService.cpp
+++ b/android/app/jni/com_android_bluetooth_btservice_AdapterService.cpp
@@ -42,19 +42,6 @@ extern bt_interface_t bluetoothInterface;
 
 namespace android {
 // Both
-// OOB_ADDRESS_SIZE is 6 bytes address + 1 byte address type
-#define OOB_ADDRESS_SIZE 7
-#define OOB_C_SIZE 16
-#define OOB_R_SIZE 16
-#define OOB_NAME_MAX_SIZE 256
-// Classic
-#define OOB_DATA_LEN_SIZE 2
-#define OOB_COD_SIZE 3
-// LE
-#define OOB_TK_SIZE 16
-#define OOB_LE_FLAG_SIZE 1
-#define OOB_LE_ROLE_SIZE 1
-#define OOB_LE_APPEARANCE_SIZE 2
 
 #define TRANSPORT_AUTO 0
 #define TRANSPORT_BREDR 1
diff --git a/system/include/hardware/bluetooth.h b/system/include/hardware/bluetooth.h
index 96e425ca242f21004a5010f588f852f0c6258eb8..f9ad870dee1ceaa74c670e118427df5521d4af32 100644
--- a/system/include/hardware/bluetooth.h
+++ b/system/include/hardware/bluetooth.h
@@ -349,25 +349,38 @@ typedef struct {
   void* val;
 } bt_property_t;
 
+// OOB_ADDRESS_SIZE is 6 bytes address + 1 byte address type
+#define OOB_ADDRESS_SIZE 7
+#define OOB_C_SIZE 16
+#define OOB_R_SIZE 16
+#define OOB_NAME_MAX_SIZE 256
+// Classic
+#define OOB_DATA_LEN_SIZE 2
+#define OOB_COD_SIZE 3
+// LE
+#define OOB_TK_SIZE 16
+#define OOB_LE_FLAG_SIZE 1
+#define OOB_LE_ROLE_SIZE 1
+#define OOB_LE_APPEARANCE_SIZE 2
 /** Represents the actual Out of Band data itself */
 typedef struct bt_oob_data_s {
   // Both
   bool is_valid = false; /* Default to invalid data; force caller to verify */
-  uint8_t address[7]; /* Bluetooth Device Address (6) plus Address Type (1) */
-  uint8_t c[16];      /* Simple Pairing Hash C-192/256 (Classic or LE) */
-  uint8_t r[16];      /* Simple Pairing Randomizer R-192/256 (Classic or LE) */
-  uint8_t device_name[256]; /* Name of the device */
+  uint8_t address[OOB_ADDRESS_SIZE];
+  uint8_t c[OOB_C_SIZE];      /* Simple Pairing Hash C-192/256 (Classic or LE) */
+  uint8_t r[OOB_R_SIZE];      /* Simple Pairing Randomizer R-192/256 (Classic or LE) */
+  uint8_t device_name[OOB_NAME_MAX_SIZE]; /* Name of the device */
 
   // Classic
-  uint8_t oob_data_length[2]; /* Classic only data Length. Value includes this
-                                 in length */
-  uint8_t class_of_device[2]; /* Class of Device (Classic or LE) */
+  uint8_t oob_data_length[OOB_DATA_LEN_SIZE]; /* Classic only data Length. Value includes this
+                                                 in length */
+  uint8_t class_of_device[OOB_COD_SIZE]; /* Class of Device (Classic or LE) */
 
   // LE
   uint8_t le_device_role;   /* Supported and preferred role of device */
-  uint8_t sm_tk[16];        /* Security Manager TK Value (LE Only) */
+  uint8_t sm_tk[OOB_TK_SIZE];        /* Security Manager TK Value (LE Only) */
   uint8_t le_flags;         /* LE Flags for discoverability and features */
-  uint8_t le_appearance[2]; /* For the appearance of the device */
+  uint8_t le_appearance[OOB_LE_APPEARANCE_SIZE]; /* For the appearance of the device */
 } bt_oob_data_t;
 
 /** Bluetooth Device Type */