diff --git a/Livox-SDK-Communication-Protocol.md b/Livox-SDK-Communication-Protocol.md
index e68e417..81b0430 100644
--- a/Livox-SDK-Communication-Protocol.md
+++ b/Livox-SDK-Communication-Protocol.md
@@ -472,7 +472,7 @@ message
 | data | cmd_set        | 0             | uint8_t     | General Command: 0x00                                        |
 |      | cmd_id         | 1             | uint8_t     | Command ID: 0x00                                             |
 |      | broadcast_code | 2             | uint8_t[16] | Device Broadcast Code, C-Style string end with '\\0' <br>The Broadcast Code of Each Device is UNIQUE. |
-|      | dev_type       | 18            | uint8_t     | Device Type:<br> 0: Livox Hub <br>1: Mid-40 <br>2: Tele-15 <br>3: Horizon<br>6: Mid-70<br>9:Avia<br> |
+|      | dev_type       | 18            | uint8_t     | Device Type:<br> 0: Livox Hub <br>1: Mid-40 <br>2: Tele-15 <br>3: Horizon<br>6: Mid-70<br>7 :Avia<br> |
 |      | reserved       | 19            | uint16_t    | Reserved                                                     |
 
 ### 0x01 Handshake