diff --git a/docs/assets/img/product_pics/unit/4_relay/4-relay_sch.webp b/docs/assets/img/product_pics/unit/4_relay/4-relay_sch.webp
new file mode 100644
index 00000000..54f55de5
Binary files /dev/null and b/docs/assets/img/product_pics/unit/4_relay/4-relay_sch.webp differ
diff --git a/docs/zh_CN/module/comx_gps.md b/docs/zh_CN/module/comx_gps.md
index 2fd0b4a5..7cae5305 100644
--- a/docs/zh_CN/module/comx_gps.md
+++ b/docs/zh_CN/module/comx_gps.md
@@ -159,7 +159,7 @@
 
 <script>
 
-   var purchase_link = 'https://m5stack.com/collections/m5-module/products/gps-module';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-gps-module-neo-m8n-with-antenna';
 
 
    anchor_search(purchase_link);