diff --git a/README.md b/README.md
index 36804e9a040bbc53802e3e6368b23fc489583bbf..e25bf3953755e45947b3a7d048f259134f9aaef8 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ Storage IO<br/>
 Command Line Support<br/>
 UI Control Features (Status Bar and Navigation Bar)<br/>
 TTS Features<br/>
+Volume Control Features<br/>
 
 ## Current Version
 1.0-git-201708111646
diff --git a/rubylib/build.gradle b/rubylib/build.gradle
index 4041c9c6a0e81a31716cf6533d999139776375b9..28233154116d011ca594956771177b81ff3a999d 100644
--- a/rubylib/build.gradle
+++ b/rubylib/build.gradle
@@ -7,7 +7,7 @@ publish {
     userOrg = 'takeya-yuki-studio'      //bintray注册的用户名
     groupId = 'jp.ruby.rubylib'         //compile引用时的第1部分groupId
     artifactId = 'rubylib'     //compile引用时的第2部分项目名
-    publishVersion = '1.0.5'    //compile引用时的第3部分版本号
+    publishVersion = '1.0.6'    //compile引用时的第3部分版本号
     desc = 'Ruby Extended Controls'
     website = 'https://github.com/Takeya-Yuki/RubyLib.git'
 }
@@ -20,8 +20,8 @@ android {
     defaultConfig {
         minSdkVersion 17
         targetSdkVersion 26
-        versionCode 5
-        versionName "1.0.5"
+        versionCode 6
+        versionName "1.0.6"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
diff --git a/rubylib/src/main/AndroidManifest.xml b/rubylib/src/main/AndroidManifest.xml
index 06b0d2d413291a612b383af8b1a815689871bdcc..3b579a9e7d2098f94e6ff9e98f73d83819780839 100644
--- a/rubylib/src/main/AndroidManifest.xml
+++ b/rubylib/src/main/AndroidManifest.xml
@@ -8,4 +8,7 @@
     </application>
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <uses-permission android:name="android.permission.WRITE_SETTINGS"/>
+    <uses-permission android:name="android.permission.READ_SETTINGS"/>
+
 </manifest>
diff --git a/rubylib/src/main/java/yuki/media/extended/VolumeControl.java b/rubylib/src/main/java/yuki/media/extended/VolumeControl.java
new file mode 100644
index 0000000000000000000000000000000000000000..8e0a40930f198038f065037029bd4104ce75667a
--- /dev/null
+++ b/rubylib/src/main/java/yuki/media/extended/VolumeControl.java
@@ -0,0 +1,25 @@
+package yuki.media.extended;
+
+import android.content.Context;
+import android.media.AudioManager;
+
+/**
+ * Created by Akeno on 2017/08/12.
+ */
+
+public class VolumeControl {
+    public void GetMaxVolume(Context context,int streamType){
+        AudioManager am=(AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
+        am.getStreamMaxVolume(streamType);
+    }
+
+    public void SetVolume(Context context,int streamType,int volume,int flag){
+        AudioManager am=(AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
+        am.setStreamVolume(streamType,volume,flag);
+    }
+
+    public int GetVolume(Context context, int streamType){
+        AudioManager am=(AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
+        return am.getStreamVolume(streamType);
+    }
+}