diff --git a/audio_prompts/factory_test/customer_fs/factory_audio_loopback_zh.mp3 b/audio_prompts/factory_test/customer_fs/factory_audio_loopback_zh.mp3
new file mode 100644
index 0000000..115fa56
Binary files /dev/null and b/audio_prompts/factory_test/customer_fs/factory_audio_loopback_zh.mp3 differ
diff --git a/audio_prompts/factory_test/customer_fs/factory_nfc_test_zh.mp3 b/audio_prompts/factory_test/customer_fs/factory_nfc_test_zh.mp3
new file mode 100644
index 0000000..a57f714
Binary files /dev/null and b/audio_prompts/factory_test/customer_fs/factory_nfc_test_zh.mp3 differ
diff --git a/docs/factory_test.md b/docs/factory_test.md
index 6ccae49..ead6b4d 100644
--- a/docs/factory_test.md
+++ b/docs/factory_test.md
@@ -64,6 +64,13 @@ U:/factory_pass_zh.mp3
 U:/factory_shutdown_zh.mp3
 ```
 
+文件系统同时预留两段快速节点提示音，供后续接入测试节点时使用：
+
+```text
+U:/factory_audio_loopback_zh.mp3
+U:/factory_nfc_test_zh.mp3
+```
+
 对应资源源目录为：
 
 ```text
diff --git a/docs/factory_test_windows_fs.md b/docs/factory_test_windows_fs.md
index 9b8081a..709642c 100644
--- a/docs/factory_test_windows_fs.md
+++ b/docs/factory_test_windows_fs.md
@@ -2,10 +2,12 @@
 
 ## 1. 说明
 
-产测固件从 U 盘文件系统根目录读取以下三个文件：
+产测音频包包含以下五个文件：
 
 ```text
 factory_boot_zh.mp3
+factory_audio_loopback_zh.mp3
+factory_nfc_test_zh.mp3
 factory_pass_zh.mp3
 factory_shutdown_zh.mp3
 ```
@@ -44,6 +46,8 @@ dir audio_prompts\factory_test\customer_fs
 
 ```text
 factory_boot_zh.mp3
+factory_audio_loopback_zh.mp3
+factory_nfc_test_zh.mp3
 factory_pass_zh.mp3
 factory_shutdown_zh.mp3
 ```
diff --git a/factory_host/README.md b/factory_host/README.md
index e9664bc..450dfba 100644
--- a/factory_host/README.md
+++ b/factory_host/README.md
@@ -30,7 +30,7 @@ burn_tool/aboot-tools-2024.08.08-win-x64/adownload.exe
 factory_host/dist/EG800FactoryHost.exe
 ```
 
-默认“产测固件”指向已包含三个产测 MP3 的 FT1 整包；默认“正式固件”指向
+默认“产测固件”指向已包含五个产测 MP3 的 FT1 整包；默认“正式固件”指向
 `version` 目录中的正式内层 `-fac.zip`。两者都可在外置
 `factory_host_config.json` 中替换，烧录时不要选择 `-target.zip` 外层归档。
 
@@ -69,7 +69,7 @@ python -B .\factory_host\build_factory_audio_package.py
 
 脚本会执行以下检查：
 
-1. 源目录必须且只能包含三个固定文件名。
+1. 源目录必须且只能包含五个固定文件名。
 2. 每个文件必须为 16 kHz、单声道、48 kbps MP3。
 3. 使用 SDK `mklfs-v2.exe -m` 生成 262144 字节 `customer_fs.bin`。
 4. 立即反向解包镜像并逐文件比对 SHA-256。
diff --git a/factory_host/build_factory_audio_package.py b/factory_host/build_factory_audio_package.py
index 5ef8d3d..a4b6dbd 100644
--- a/factory_host/build_factory_audio_package.py
+++ b/factory_host/build_factory_audio_package.py
@@ -1,4 +1,4 @@
-"""Validate and package the three fixed FT1 audio prompts."""
+"""Validate and package the fixed FT1 audio prompts."""
 
 from __future__ import annotations
 
@@ -15,6 +15,8 @@ from pathlib import Path
 
 EXPECTED_FILES = (
     "factory_boot_zh.mp3",
+    "factory_audio_loopback_zh.mp3",
+    "factory_nfc_test_zh.mp3",
     "factory_pass_zh.mp3",
     "factory_shutdown_zh.mp3",
 )
@@ -165,7 +167,7 @@ def build_package(root: Path, output: Path) -> tuple[Path, Path, dict]:
     readme_path.write_text(
         "班班 FT1 产测音频包\n\n"
         "customer_fs.bin 固定为 262144 字节，用于 EG800AKCN_11LG 的 customer_fs 分区。\n"
-        "三个 MP3 必须位于 U:/ 根目录；不要将此镜像混入正式业务固件。\n"
+        "五个 MP3 必须位于 U:/ 根目录；不要将此镜像混入正式业务固件。\n"
         "烧录后以 FT1 BOOT_AUDIO 和最终 session_result 作为设备侧验证。\n",
         encoding="utf-8-sig",
     )