diff --git a/docs/en/module/comx_lte-data.md b/docs/en/module/comx_lte-data.md
index ec1c830a..be1b1095 100644
--- a/docs/en/module/comx_lte-data.md
+++ b/docs/en/module/comx_lte-data.md
@@ -155,7 +155,7 @@ To get complete code, please click [here](https://github.com/m5stack/M5-ProductE
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-data-modulea7600c';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/en/module/comx_lte.md b/docs/en/module/comx_lte.md
index 173dacbc..3ed28576 100644
--- a/docs/en/module/comx_lte.md
+++ b/docs/en/module/comx_lte.md
@@ -182,7 +182,7 @@ To get complete code, please click [here](https://github.com/m5stack/M5-ProductE
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-modulesim7600g';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/en/module/comx_nb-iot.md b/docs/en/module/comx_nb-iot.md
index 06753401..db7b8519 100644
--- a/docs/en/module/comx_nb-iot.md
+++ b/docs/en/module/comx_nb-iot.md
@@ -163,7 +163,7 @@ To get complete code, please click [here](https://github.com/m5stack/M5-ProductE
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-nb-iot-modulesim7020g';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/comx_lte-data.md b/docs/zh_CN/module/comx_lte-data.md
index c6f26041..ed2b5147 100644
--- a/docs/zh_CN/module/comx_lte-data.md
+++ b/docs/zh_CN/module/comx_lte-data.md
@@ -157,7 +157,7 @@
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-data-modulea7600c';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/comx_lte.md b/docs/zh_CN/module/comx_lte.md
index 4c59d8e2..cfcc3970 100644
--- a/docs/zh_CN/module/comx_lte.md
+++ b/docs/zh_CN/module/comx_lte.md
@@ -179,7 +179,7 @@
 
 <script>
 
-   var purchase_link = 'https://m5stack.com/collections/m5-module/products/m5stack-nb-iot-module';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-modulesim7600g';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/comx_nb-iot.md b/docs/zh_CN/module/comx_nb-iot.md
index 761c5b44..470e6d60 100644
--- a/docs/zh_CN/module/comx_nb-iot.md
+++ b/docs/zh_CN/module/comx_nb-iot.md
@@ -159,7 +159,7 @@
 </table>
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-nb-iot-modulesim7020g';
 
    anchor_search(purchase_link);
    scrollFunc();