diff --git a/docs/en/unit/unitv.md b/docs/en/unit/unitv.md
index fe8dbaf6..d3f3361b 100644
--- a/docs/en/unit/unitv.md
+++ b/docs/en/unit/unitv.md
@@ -28,7 +28,7 @@ Support MicroPython development environment, which makes the program code more c
     - Indicator light:  WS2812 LED 
     - External storage:  TF card/Micro SD
     - Interface:  PH2.0/compatible GROVE
-- Size: 4mm * 2.5mm * 1.5mm
+- Size: 40mm * 24mm * 18mm
 - Weight: 4g
 
 ### Applications/What can UNIT-V do?
diff --git a/docs/index.md b/docs/index.md
index 233e16ff..a5b15878 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -230,7 +230,6 @@
       "STEPMOTOR":"Drive Modules",
       "ENCODER":"FACES Series",
       "LAN":"Base",
-      // "ATOMIC":"ATOM-BASE",
       "ESP32CAM":"Camera class",
       "EARTH":"Sensor class",
       "EXT.IO":"I / 0  class",
@@ -302,6 +301,8 @@
                   'left': (e.pageX - x + 'px'),
                   'top': (e.pageY - y + 'px')
               }).show();
+          }).click(function (e) {
+              $('#tag_title').remove();
           })
       });
         anchor_search();
diff --git a/docs/zh_CN/README.md b/docs/zh_CN/README.md
index cbb82972..62c5620d 100644
--- a/docs/zh_CN/README.md
+++ b/docs/zh_CN/README.md
@@ -227,7 +227,6 @@
       "STEPMOTOR":"Drive Modules",
       "ENCODER":"FACES Series",
       "LAN":"Base",
-      // "ATOMIC":"ATOM-BASE",
       "ESP32CAM":"Camera class",
       "EARTH":"Sensor class",
       "EXT.IO":"I / 0  class",
@@ -299,6 +298,8 @@
                   'left': (e.pageX - x + 'px'),
                   'top': (e.pageY - y + 'px')
               }).show();
+          }).click(function (e) {
+              $('#tag_title').remove();
           })
       });
         anchor_search();
diff --git a/docs/zh_CN/unit/unitv.md b/docs/zh_CN/unit/unitv.md
index f34a652f..bdcb097a 100644
--- a/docs/zh_CN/unit/unitv.md
+++ b/docs/zh_CN/unit/unitv.md
@@ -82,7 +82,7 @@
    </tr>
    <tr>
       <td>尺寸</td>
-      <td>4mm * 2.5mm * 1.5mm</td>
+      <td>40mm * 24mm * 18mm</td>
    </tr>
    <tr>
       <td>重量</td>