diff --git a/doc/api/__404error.html b/doc/api/__404error.html
index e33eff9..9366030 100644
--- a/doc/api/__404error.html
+++ b/doc/api/__404error.html
@@ -77,7 +77,7 @@ <h1>404: Something's gone wrong :-(</h1>
 <footer>
   <span class="no-break">
     medcorder_audio
-      0.0.6
+      0.0.7
   </span>
 
 </footer>
diff --git a/doc/api/index.html b/doc/api/index.html
index c1d070c..35b1c78 100644
--- a/doc/api/index.html
+++ b/doc/api/index.html
@@ -131,7 +131,7 @@ <h2>Libraries</h2>
 <footer>
   <span class="no-break">
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 </footer>
diff --git a/doc/api/medcorder_audio/MedcorderAudio-class.html b/doc/api/medcorder_audio/MedcorderAudio-class.html
index 0da8078..e416bd9 100644
--- a/doc/api/medcorder_audio/MedcorderAudio-class.html
+++ b/doc/api/medcorder_audio/MedcorderAudio-class.html
@@ -124,7 +124,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          iOS only. close PlayAndRecord audio session 
                   
 </dd>
         <dt id="checkMicrophonePermissions" class="callable">
@@ -133,7 +133,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          Check if you have recording audio permissions 
                   
 </dd>
         <dt id="noSuchMethod" class="callable inherited">
@@ -151,7 +151,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          iOS only. open PlayAndRecord audio session 
                   
 </dd>
         <dt id="setCallBack" class="callable">
@@ -160,7 +160,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          Callback function <a href="../medcorder_audio/MedcorderAudio/setCallBack.html">[...]</a>
                   
 </dd>
         <dt id="startPlay" class="callable">
@@ -169,7 +169,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          Start audio playing for file with position 
                   
 </dd>
         <dt id="startRecord" class="callable">
@@ -178,7 +178,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          Start record audio file to app documents path 
                   
 </dd>
         <dt id="stopPlay" class="callable">
@@ -187,7 +187,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          Stop audio playing 
                   
 </dd>
         <dt id="stopRecord" class="callable">
@@ -196,7 +196,7 @@ <h2>Methods</h2>
           </span>
                   </dt>
         <dd>
-           
+          Stop audio recording process 
                   
 </dd>
         <dt id="toString" class="callable inherited">
@@ -303,7 +303,7 @@ <h2>Constants</h2>
 <footer>
   <span class="no-break">
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/MedcorderAudio.html b/doc/api/medcorder_audio/MedcorderAudio/MedcorderAudio.html
index 5b99fca..a95a81d 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/MedcorderAudio.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/MedcorderAudio.html
@@ -117,7 +117,7 @@ <h2><span>Implementation</span></h2>
 <footer>
   <span class="no-break">
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 </footer>
diff --git a/doc/api/medcorder_audio/MedcorderAudio/backAudioSettings.html b/doc/api/medcorder_audio/MedcorderAudio/backAudioSettings.html
index 543f86f..852facc 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/backAudioSettings.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/backAudioSettings.html
@@ -100,6 +100,9 @@ <h5>MedcorderAudio class</h5>
 (<wbr>)
       
     </section>
+    <section class="desc markdown">
+      <p>iOS only. close PlayAndRecord audio session</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -125,7 +128,7 @@ <h2><span>Implementation</span></h2>
 <footer>
   <span class="no-break">
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 </footer>
diff --git a/doc/api/medcorder_audio/MedcorderAudio/callback.html b/doc/api/medcorder_audio/MedcorderAudio/callback.html
index 84ec3dc..873176b 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/callback.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/callback.html
@@ -116,7 +116,7 @@ <h2><span>Implementation</span></h2>
 <footer>
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 </footer>
diff --git a/doc/api/medcorder_audio/MedcorderAudio/checkMicrophonePermissions.html b/doc/api/medcorder_audio/MedcorderAudio/checkMicrophonePermissions.html
index 82e9967..35ee253 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/checkMicrophonePermissions.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/checkMicrophonePermissions.html
@@ -100,6 +100,9 @@ <h5>MedcorderAudio class</h5>
 (<wbr>)
       
     </section>
+    <section class="desc markdown">
+      <p>Check if you have recording audio permissions</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -126,7 +129,7 @@ <h2><span>Implementation</span></h2>
 <footer>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/eventChannel-constant.html b/doc/api/medcorder_audio/MedcorderAudio/eventChannel-constant.html
index b3ccfbe..7ae00d6 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/eventChannel-constant.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/eventChannel-constant.html
@@ -117,7 +117,7 @@ <h2><span>Implementation</span></h2>
 <footer>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/platform-constant.html b/doc/api/medcorder_audio/MedcorderAudio/platform-constant.html
index 5515bfe..734f1b4 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/platform-constant.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/platform-constant.html
@@ -116,7 +116,7 @@ <h2><span>Implementation</span></h2>
 <footer>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/setAudioSettings.html b/doc/api/medcorder_audio/MedcorderAudio/setAudioSettings.html
index 48d38a2..acc2af1 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/setAudioSettings.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/setAudioSettings.html
@@ -100,6 +100,9 @@ <h5>MedcorderAudio class</h5>
 (<wbr>)
       
     </section>
+    <section class="desc markdown">
+      <p>iOS only. open PlayAndRecord audio session</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -125,7 +128,7 @@ <h2><span>Implementation</span></h2>
 <footer>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/setCallBack.html b/doc/api/medcorder_audio/MedcorderAudio/setCallBack.html
index cf9d1fe..896cb25 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/setCallBack.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/setCallBack.html
@@ -101,6 +101,17 @@ <h5>MedcorderAudio class</h5>
 </ol>)
       
     </section>
+    <section class="desc markdown">
+      <p>Callback function</p>
+<pre class="language-dart"><code class="language-dart">   void Function(dynamic event)
+</code></pre>
+<p>Event has <code>code</code> field for get event code</p>
+<h2 id="available-events">Available events:</h2>
+<h3 id="recording-events">recording events</h3>
+<table><thead><tr><th>Key</th><th style="text-align: center;">Type</th><th style="text-align: right;">Description</th></tr></thead><tbody><tr><td>'code'</td><td style="text-align: center;">String</td><td style="text-align: right;">'recording',</td></tr><tr><td>'url'</td><td style="text-align: center;">String</td><td style="text-align: right;">recording file url</td></tr><tr><td>'peakPowerForChannel'</td><td style="text-align: center;">double</td><td style="text-align: right;">peak power for channel</td></tr><tr><td>'currentTime'</td><td style="text-align: center;">double</td><td style="text-align: right;">recording time in seconds</td></tr></tbody></table>
+<h3 id="playing-events">playing events</h3>
+<table><thead><tr><th>Key</th><th style="text-align: center;">Type</th><th style="text-align: right;">Description</th></tr></thead><tbody><tr><td>'code'</td><td style="text-align: center;">String</td><td style="text-align: right;">'playing', 'audioPlayerDidFinishPlaying'</td></tr><tr><td>'url'</td><td style="text-align: center;">String</td><td style="text-align: right;">playing file url</td></tr><tr><td>'currentTime'</td><td style="text-align: center;">double</td><td style="text-align: right;">playing time in seconds</td></tr><tr><td>'duration'</td><td style="text-align: center;">double</td><td style="text-align: right;">playing file duration</td></tr></tbody></table>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -119,7 +130,7 @@ <h2><span>Implementation</span></h2>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/startPlay.html b/doc/api/medcorder_audio/MedcorderAudio/startPlay.html
index 58d022e..474a5b8 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/startPlay.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/startPlay.html
@@ -101,6 +101,9 @@ <h5>MedcorderAudio class</h5>
 </ol>)
       
     </section>
+    <section class="desc markdown">
+      <p>Start audio playing for file with position</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -126,7 +129,7 @@ <h2><span>Implementation</span></h2>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/startRecord.html b/doc/api/medcorder_audio/MedcorderAudio/startRecord.html
index c3f33e4..f162470 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/startRecord.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/startRecord.html
@@ -101,6 +101,9 @@ <h5>MedcorderAudio class</h5>
 </ol>)
       
     </section>
+    <section class="desc markdown">
+      <p>Start record audio file to app documents path</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -126,7 +129,7 @@ <h2><span>Implementation</span></h2>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/stopPlay.html b/doc/api/medcorder_audio/MedcorderAudio/stopPlay.html
index 589331e..d5af1a9 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/stopPlay.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/stopPlay.html
@@ -100,6 +100,9 @@ <h5>MedcorderAudio class</h5>
 (<wbr>)
       
     </section>
+    <section class="desc markdown">
+      <p>Stop audio playing</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -125,7 +128,7 @@ <h2><span>Implementation</span></h2>
 <footer>
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diff --git a/doc/api/medcorder_audio/MedcorderAudio/stopRecord.html b/doc/api/medcorder_audio/MedcorderAudio/stopRecord.html
index de2b6b8..6d92a2a 100644
--- a/doc/api/medcorder_audio/MedcorderAudio/stopRecord.html
+++ b/doc/api/medcorder_audio/MedcorderAudio/stopRecord.html
@@ -100,6 +100,9 @@ <h5>MedcorderAudio class</h5>
 (<wbr>)
       
     </section>
+    <section class="desc markdown">
+      <p>Stop audio recording process</p>
+    </section>
     
     <section class="summary source-code" id="source">
       <h2><span>Implementation</span></h2>
@@ -125,7 +128,7 @@ <h2><span>Implementation</span></h2>
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diff --git a/doc/api/medcorder_audio/medcorder_audio-library.html b/doc/api/medcorder_audio/medcorder_audio-library.html
index c58bff7..eff0b5f 100644
--- a/doc/api/medcorder_audio/medcorder_audio-library.html
+++ b/doc/api/medcorder_audio/medcorder_audio-library.html
@@ -104,7 +104,7 @@ <h5>medcorder_audio library</h5>
 <footer>
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diff --git a/lib/medcorder_audio.dart b/lib/medcorder_audio.dart
index a4c7a42..4043e4a 100644
--- a/lib/medcorder_audio.dart
+++ b/lib/medcorder_audio.dart
@@ -13,10 +13,35 @@ class MedcorderAudio {
     eventChannel.receiveBroadcastStream().listen(_onEvent, onError: _onError);
   }
 
+  /// Callback function
+  ///
+  /// ```dart
+  ///    void Function(dynamic event)
+  /// ```
+  ///
+  /// Event has [code] field for get event code
+  ///
+  /// ## Available events:
+  /// ### recording events
+  /// | Key      | Type           | Description  |
+  /// | ------------- |:-------------:| ---------:|
+  /// |'code'	|String	|'recording', |
+  /// |'url'	|String	|recording file url|
+  /// |'peakPowerForChannel'	|double	|peak power for channel|
+  /// |'currentTime'	|double	|recording time in seconds|
+  ///
+  /// ### playing events
+  /// | Key      | Type           | Description  |
+  /// | ------------- |:-------------:| ---------:|
+  /// |'code'	|String	|'playing', 'audioPlayerDidFinishPlaying' |
+  /// |'url'	|String	|playing file url|
+  /// |'currentTime'	|double	|playing time in seconds|
+  /// |'duration'	|double	|playing file duration|
   void setCallBack(dynamic _callback) {
     callback = _callback;
   }
 
+  /// iOS only. open PlayAndRecord audio session
   Future<String> setAudioSettings() async {
     try {
       final String result = await platform.invokeMethod('setAudioSettings');
@@ -28,6 +53,7 @@ class MedcorderAudio {
     }
   }
 
+  /// iOS only. close PlayAndRecord audio session
   Future<String> backAudioSettings() async {
     try {
       final String result = await platform.invokeMethod('backAudioSettings');
@@ -39,6 +65,7 @@ class MedcorderAudio {
     }
   }
 
+  /// Start record audio file to app documents path
   Future<String> startRecord(String file) async {
     try {
       final String result = await platform.invokeMethod('startRecord', file);
@@ -50,6 +77,7 @@ class MedcorderAudio {
     }
   }
 
+  /// Stop audio recording process
   Future<String> stopRecord() async {
     try {
       final String result = await platform.invokeMethod('stopRecord');
@@ -61,6 +89,7 @@ class MedcorderAudio {
     }
   }
 
+  /// Check if you have recording audio permissions
   Future<String> checkMicrophonePermissions() async {
     try {
       final String result =
@@ -73,6 +102,7 @@ class MedcorderAudio {
     }
   }
 
+  /// Start audio playing for file with position
   Future<String> startPlay(dynamic params) async {
     try {
       final String result = await platform.invokeMethod('startPlay', params);
@@ -84,6 +114,7 @@ class MedcorderAudio {
     }
   }
 
+  /// Stop audio playing
   Future<String> stopPlay() async {
     try {
       final String result = await platform.invokeMethod('stopPlay');
@@ -95,6 +126,7 @@ class MedcorderAudio {
     }
   }
 
+  /// For receiving plugin events you need assign callback function
   void _onEvent(dynamic event) {
     callback(event);
   }